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 1.8 2008/04/11 18:21:48 dillon 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 <net/if_clone.h>
47 #include <netinet/in.h>
50 #include <vm/vm_zone.h>
55 * If we include <netipsec/keydb.h>, we need _KERNEL definition.
56 * This makes pfctl compilation difficult.
58 union sockaddr_union {
60 struct sockaddr_in sin;
61 struct sockaddr_in6 sin6;
64 #include <netinet/tcp_fsm.h>
68 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
69 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
71 enum { PF_INOUT, PF_IN, PF_OUT };
72 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
73 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT,
74 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
75 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
76 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
77 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
78 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
79 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
80 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
81 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
82 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
84 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
85 * PFTM_MAX, special cases afterwards. See pf_state_expires().
87 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
88 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
89 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
90 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
91 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
92 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
93 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
94 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET };
95 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
96 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX };
97 #define PF_POOL_IDMASK 0x0f
98 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
99 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
100 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
102 #define PF_POOL_TYPEMASK 0x0f
103 #define PF_POOL_STICKYADDR 0x20
104 #define PF_WSCALE_FLAG 0x80
105 #define PF_WSCALE_MASK 0x0f
114 } pfa; /* 128-bit address */
117 #define addr8 pfa.addr8
118 #define addr16 pfa.addr16
119 #define addr32 pfa.addr32
122 #define PF_TABLE_NAME_SIZE 32
124 #define PFI_AFLAG_NETWORK 0x01
125 #define PFI_AFLAG_BROADCAST 0x02
126 #define PFI_AFLAG_PEER 0x04
127 #define PFI_AFLAG_MODEMASK 0x07
128 #define PFI_AFLAG_NOALIAS 0x08
130 struct pf_addr_wrap {
136 char ifname[IFNAMSIZ];
137 char tblname[PF_TABLE_NAME_SIZE];
140 struct pfi_dynaddr *dyn;
141 struct pfr_ktable *tbl;
145 u_int8_t type; /* PF_ADDR_* */
146 u_int8_t iflags; /* PFI_AFLAG_* */
152 struct pf_addr pfid_addr4;
153 struct pf_addr pfid_mask4;
154 struct pf_addr pfid_addr6;
155 struct pf_addr pfid_mask6;
156 struct pfr_ktable *pfid_kt;
157 struct pfi_kif *pfid_kif;
158 void *pfid_hook_cookie;
159 int pfid_net; /* optional mask, or 128 */
160 int pfid_acnt4; /* address count, IPv4 */
161 int pfid_acnt6; /* address count, IPv6 */
162 sa_family_t pfid_af; /* rule address family */
163 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
167 * Address manipulation macros
170 /* XXX correct values for zinit? */
171 #define ZONE_CREATE(var, type, desc) \
172 var = zinit(desc, sizeof(type), 1, ZONE_DESTROYABLE, 1); \
173 if (var == NULL) break
174 #define ZONE_DESTROY(a) zdestroy(a)
176 #define pool_get(p, f) zalloc(*(p))
177 #define pool_put(p, o) zfree(*(p), (o))
182 #define PFLOG_MODVER 1
183 #define PFSYNC_MODVER 1
185 #define PFLOG_MINVER 1
186 #define PFLOG_PREFVER PFLOG_MODVER
187 #define PFLOG_MAXVER 1
188 #define PFSYNC_MINVER 1
189 #define PFSYNC_PREFVER PFSYNC_MODVER
190 #define PFSYNC_MAXVER 1
192 /* prototyped for pf_subr.c */
194 TAILQ_ENTRY(hook_desc) hd_list;
195 void (*hd_fn)(void *);
198 TAILQ_HEAD(hook_desc_head, hook_desc);
200 void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *);
201 void hook_disestablish(struct hook_desc_head *, void *);
202 void dohooks(struct hook_desc_head *, int);
204 #define HOOK_REMOVE 0x01
205 #define HOOK_FREE 0x02
215 #define PF_INET6_ONLY
221 #define PF_INET_INET6
227 #define PF_INET_INET6
231 /* Both IPv4 and IPv6 */
234 #define PF_AEQ(a, b, c) \
235 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
236 ((a)->addr32[3] == (b)->addr32[3] && \
237 (a)->addr32[2] == (b)->addr32[2] && \
238 (a)->addr32[1] == (b)->addr32[1] && \
239 (a)->addr32[0] == (b)->addr32[0])) \
241 #define PF_ANEQ(a, b, c) \
242 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
243 ((a)->addr32[3] != (b)->addr32[3] || \
244 (a)->addr32[2] != (b)->addr32[2] || \
245 (a)->addr32[1] != (b)->addr32[1] || \
246 (a)->addr32[0] != (b)->addr32[0])) \
248 #define PF_AZERO(a, c) \
249 ((c == AF_INET && !(a)->addr32[0]) || \
250 (!(a)->addr32[0] && !(a)->addr32[1] && \
251 !(a)->addr32[2] && !(a)->addr32[3] )) \
253 #define PF_MATCHA(n, a, m, b, f) \
254 pf_match_addr(n, a, m, b, f)
256 #define PF_ACPY(a, b, f) \
259 #define PF_AINC(a, f) \
262 #define PF_POOLMASK(a, b, c, d, f) \
263 pf_poolmask(a, b, c, d, f)
271 #define PF_AEQ(a, b, c) \
272 ((a)->addr32[3] == (b)->addr32[3] && \
273 (a)->addr32[2] == (b)->addr32[2] && \
274 (a)->addr32[1] == (b)->addr32[1] && \
275 (a)->addr32[0] == (b)->addr32[0]) \
277 #define PF_ANEQ(a, b, c) \
278 ((a)->addr32[3] != (b)->addr32[3] || \
279 (a)->addr32[2] != (b)->addr32[2] || \
280 (a)->addr32[1] != (b)->addr32[1] || \
281 (a)->addr32[0] != (b)->addr32[0]) \
283 #define PF_AZERO(a, c) \
284 (!(a)->addr32[0] && \
289 #define PF_MATCHA(n, a, m, b, f) \
290 pf_match_addr(n, a, m, b, f)
292 #define PF_ACPY(a, b, f) \
295 #define PF_AINC(a, f) \
298 #define PF_POOLMASK(a, b, c, d, f) \
299 pf_poolmask(a, b, c, d, f)
306 #define PF_AEQ(a, b, c) \
307 ((a)->addr32[0] == (b)->addr32[0])
309 #define PF_ANEQ(a, b, c) \
310 ((a)->addr32[0] != (b)->addr32[0])
312 #define PF_AZERO(a, c) \
315 #define PF_MATCHA(n, a, m, b, f) \
316 pf_match_addr(n, a, m, b, f)
318 #define PF_ACPY(a, b, f) \
319 (a)->v4.s_addr = (b)->v4.s_addr
321 #define PF_AINC(a, f) \
323 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
326 #define PF_POOLMASK(a, b, c, d, f) \
328 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
329 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
332 #endif /* PF_INET_ONLY */
333 #endif /* PF_INET6_ONLY */
334 #endif /* PF_INET_INET6 */
336 #define PF_MISMATCHAW(aw, x, af, not) \
338 (((aw)->type == PF_ADDR_NOROUTE && \
339 pf_routable((x), (af))) || \
340 ((aw)->type == PF_ADDR_TABLE && \
341 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
342 ((aw)->type == PF_ADDR_DYNIFTL && \
343 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
344 ((aw)->type == PF_ADDR_ADDRMASK && \
345 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
346 !PF_MATCHA(0, &(aw)->v.a.addr, \
347 &(aw)->v.a.mask, (x), (af)))) != \
361 struct pf_rule_addr {
362 struct pf_addr_wrap addr;
369 struct pf_addr_wrap addr;
370 TAILQ_ENTRY(pf_pooladdr) entries;
371 char ifname[IFNAMSIZ];
375 TAILQ_HEAD(pf_palist, pf_pooladdr);
377 struct pf_poolhashkey {
382 } pfk; /* 128-bit hash key */
383 #define key8 pfk.key8
384 #define key16 pfk.key16
385 #define key32 pfk.key32
389 struct pf_palist list;
390 struct pf_pooladdr *cur;
391 struct pf_poolhashkey key;
392 struct pf_addr counter;
394 u_int16_t proxy_port[2];
400 /* A packed Operating System description for fingerprinting */
401 typedef u_int32_t pf_osfp_t;
402 #define PF_OSFP_ANY ((pf_osfp_t)0)
403 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
404 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
406 struct pf_osfp_entry {
407 SLIST_ENTRY(pf_osfp_entry) fp_entry;
410 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
411 #define PF_OSFP_GENERIC 0x002 /* generic signature */
412 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
413 #define PF_OSFP_LEN 32
414 char fp_class_nm[PF_OSFP_LEN];
415 char fp_version_nm[PF_OSFP_LEN];
416 char fp_subtype_nm[PF_OSFP_LEN];
418 #define PF_OSFP_ENTRY_EQ(a, b) \
419 ((a)->fp_os == (b)->fp_os && \
420 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
421 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
422 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
424 /* handle pf_osfp_t packing */
425 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
426 #define _FP_UNUSED_BITS 1
427 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
428 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
429 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
430 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
431 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
432 ((1 << _FP_CLASS_BITS) - 1); \
433 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
434 ((1 << _FP_VERSION_BITS) - 1);\
435 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
437 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
438 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
439 + _FP_SUBTYPE_BITS); \
440 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
442 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
445 /* the fingerprint of an OSes TCP SYN packet */
446 typedef u_int64_t pf_tcpopts_t;
447 struct pf_os_fingerprint {
448 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
449 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
450 u_int16_t fp_wsize; /* TCP window size */
451 u_int16_t fp_psize; /* ip->ip_len */
452 u_int16_t fp_mss; /* TCP MSS */
454 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
455 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
456 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
457 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
458 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
459 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
460 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
461 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
462 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
463 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
464 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
465 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
466 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
467 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
468 u_int8_t fp_optcnt; /* TCP option count */
469 u_int8_t fp_wscale; /* TCP window scaling */
470 u_int8_t fp_ttl; /* IPv4 TTL */
471 #define PF_OSFP_MAXTTL_OFFSET 40
472 /* TCP options packing */
473 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
474 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
475 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
476 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
477 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
478 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
479 #define PF_OSFP_MAX_OPTS \
480 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
481 / PF_OSFP_TCPOPT_BITS
483 SLIST_ENTRY(pf_os_fingerprint) fp_next;
486 struct pf_osfp_ioctl {
487 struct pf_osfp_entry fp_os;
488 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
489 u_int16_t fp_wsize; /* TCP window size */
490 u_int16_t fp_psize; /* ip->ip_len */
491 u_int16_t fp_mss; /* TCP MSS */
493 u_int8_t fp_optcnt; /* TCP option count */
494 u_int8_t fp_wscale; /* TCP window scaling */
495 u_int8_t fp_ttl; /* IPv4 TTL */
497 int fp_getnum; /* DIOCOSFPGET number */
507 struct pf_rule_addr src;
508 struct pf_rule_addr dst;
509 #define PF_SKIP_IFP 0
510 #define PF_SKIP_DIR 1
512 #define PF_SKIP_PROTO 3
513 #define PF_SKIP_SRC_ADDR 4
514 #define PF_SKIP_SRC_PORT 5
515 #define PF_SKIP_DST_ADDR 6
516 #define PF_SKIP_DST_PORT 7
517 #define PF_SKIP_COUNT 8
518 union pf_rule_ptr skip[PF_SKIP_COUNT];
519 #define PF_RULE_LABEL_SIZE 64
520 char label[PF_RULE_LABEL_SIZE];
521 #define PF_QNAME_SIZE 16
522 char ifname[IFNAMSIZ];
523 char qname[PF_QNAME_SIZE];
524 char pqname[PF_QNAME_SIZE];
525 #define PF_ANCHOR_NAME_SIZE 16
526 char anchorname[PF_ANCHOR_NAME_SIZE];
527 #define PF_TAG_NAME_SIZE 16
528 char tagname[PF_TAG_NAME_SIZE];
529 char match_tagname[PF_TAG_NAME_SIZE];
531 TAILQ_ENTRY(pf_rule) entries;
532 struct pf_pool rpool;
534 u_int64_t evaluations;
539 struct pf_anchor *anchor;
541 pf_osfp_t os_fingerprint;
543 u_int32_t timeout[PFTM_MAX];
545 u_int32_t max_states;
547 u_int32_t max_src_nodes;
548 u_int32_t max_src_states;
555 u_int16_t return_icmp;
556 u_int16_t return_icmp6;
561 struct pf_rule_uid uid;
562 struct pf_rule_gid gid;
570 u_int8_t match_tag_not;
573 #define PF_STATE_NORMAL 0x1
574 #define PF_STATE_MODULATE 0x2
575 #define PF_STATE_SYNPROXY 0x3
588 #define PF_PICKUPS_UNSPECIFIED 0
589 #define PF_PICKUPS_DISABLED 1
590 #define PF_PICKUPS_HASHONLY 2
591 #define PF_PICKUPS_ENABLED 3
592 u_int8_t pickup_mode;
593 u_int8_t unused01; /* available for use */
597 #define PFRULE_DROP 0x0000
598 #define PFRULE_RETURNRST 0x0001
599 #define PFRULE_FRAGMENT 0x0002
600 #define PFRULE_RETURNICMP 0x0004
601 #define PFRULE_RETURN 0x0008
602 #define PFRULE_NOSYNC 0x0010
603 #define PFRULE_SRCTRACK 0x0020 /* track source states */
604 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
607 #define PFRULE_NODF 0x0100
608 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
609 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
610 #define PFRULE_RANDOMID 0x0800
611 #define PFRULE_REASSEMBLE_TCP 0x1000
613 /* rule flags again */
614 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
615 #define PFRULE_GRBOUND 0x00020000 /* group-bound */
617 #define PFSTATE_HIWAT 10000 /* default state table size */
620 RB_ENTRY(pf_src_node) entry;
622 struct pf_addr raddr;
623 union pf_rule_ptr rule;
634 #define PFSNODE_HIWAT 10000 /* default source node table size */
636 struct pf_state_scrub {
637 u_int16_t pfss_flags;
638 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
639 u_int8_t pfss_ttl; /* stashed TTL */
641 u_int32_t pfss_ts_mod; /* timestamp modulation */
644 struct pf_state_host {
650 struct pf_state_peer {
651 u_int32_t seqlo; /* Max sequence number sent */
652 u_int32_t seqhi; /* Max the other end ACKd + win */
653 u_int32_t seqdiff; /* Sequence number modulator */
654 u_int16_t max_win; /* largest window (pre scaling) */
655 u_int8_t state; /* active state level */
656 u_int8_t wscale; /* window scaling factor */
657 u_int16_t mss; /* Maximum segment size option */
658 struct pf_state_scrub *scrub; /* state is scrubbed */
661 TAILQ_HEAD(pf_state_queue, pf_state);
667 RB_ENTRY(pf_state) entry_lan_ext;
668 RB_ENTRY(pf_state) entry_ext_gwy;
669 RB_ENTRY(pf_state) entry_id;
670 TAILQ_ENTRY(pf_state) entry_updates;
673 char ifname[IFNAMSIZ];
675 struct pf_state_host lan;
676 struct pf_state_host gwy;
677 struct pf_state_host ext;
678 struct pf_state_peer src;
679 struct pf_state_peer dst;
680 union pf_rule_ptr rule;
681 union pf_rule_ptr anchor;
682 union pf_rule_ptr nat_rule;
683 struct pf_addr rt_addr;
684 struct pfi_kif *rt_kif;
685 struct pf_src_node *src_node;
686 struct pf_src_node *nat_src_node;
690 u_int32_t pfsync_time;
691 u_int32_t packets[2];
701 #define PFSTATE_NOSYNC 0x01
702 #define PFSTATE_FROMSYNC 0x02
703 #define PFSTATE_GOT_SYN1 0x04 /* got SYN in one direction */
704 #define PFSTATE_GOT_SYN2 0x08 /* got SYN in the other direction */
705 u_int8_t pickup_mode;
709 #define PFSTATE_GOT_SYN_MASK (PFSTATE_GOT_SYN1|PFSTATE_GOT_SYN2)
711 TAILQ_HEAD(pf_rulequeue, pf_rule);
716 TAILQ_ENTRY(pf_ruleset) entries;
717 #define PF_RULESET_NAME_SIZE 16
718 char name[PF_RULESET_NAME_SIZE];
720 struct pf_rulequeue queues[2];
722 struct pf_rulequeue *ptr;
726 } rules[PF_RULESET_MAX];
727 struct pf_anchor *anchor;
733 TAILQ_HEAD(pf_rulesetqueue, pf_ruleset);
736 TAILQ_ENTRY(pf_anchor) entries;
737 char name[PF_ANCHOR_NAME_SIZE];
738 struct pf_rulesetqueue rulesets;
742 TAILQ_HEAD(pf_anchorqueue, pf_anchor);
744 #define PF_RESERVED_ANCHOR "_pf"
745 #define PF_INTERFACE_RULESET "_if"
747 #define PFR_TFLAG_PERSIST 0x00000001
748 #define PFR_TFLAG_CONST 0x00000002
749 #define PFR_TFLAG_ACTIVE 0x00000004
750 #define PFR_TFLAG_INACTIVE 0x00000008
751 #define PFR_TFLAG_REFERENCED 0x00000010
752 #define PFR_TFLAG_REFDANCHOR 0x00000020
753 #define PFR_TFLAG_USRMASK 0x00000003
754 #define PFR_TFLAG_SETMASK 0x0000003C
755 #define PFR_TFLAG_ALLMASK 0x0000003F
758 char pfrt_anchor[PF_ANCHOR_NAME_SIZE];
759 char pfrt_ruleset[PF_RULESET_NAME_SIZE];
760 char pfrt_name[PF_TABLE_NAME_SIZE];
761 u_int32_t pfrt_flags;
765 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
766 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
767 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
771 struct in_addr _pfra_ip4addr;
772 struct in6_addr _pfra_ip6addr;
779 #define pfra_ip4addr pfra_u._pfra_ip4addr
780 #define pfra_ip6addr pfra_u._pfra_ip6addr
782 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
783 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
784 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
787 struct pfr_addr pfras_a;
788 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
789 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
793 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
796 struct pfr_table pfrts_t;
797 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
798 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
799 u_int64_t pfrts_match;
800 u_int64_t pfrts_nomatch;
803 int pfrts_refcnt[PFR_REFCNT_MAX];
805 #define pfrts_name pfrts_t.pfrt_name
806 #define pfrts_flags pfrts_t.pfrt_flags
808 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
810 struct radix_node pfrke_node[2];
811 union sockaddr_union pfrke_sa;
812 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
813 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
814 SLIST_ENTRY(pfr_kentry) pfrke_workq;
822 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
823 RB_HEAD(pfr_ktablehead, pfr_ktable);
825 struct pfr_tstats pfrkt_ts;
826 RB_ENTRY(pfr_ktable) pfrkt_tree;
827 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
828 struct radix_node_head *pfrkt_ip4;
829 struct radix_node_head *pfrkt_ip6;
830 struct pfr_ktable *pfrkt_shadow;
831 struct pfr_ktable *pfrkt_root;
832 struct pf_ruleset *pfrkt_rs;
836 #define pfrkt_t pfrkt_ts.pfrts_t
837 #define pfrkt_name pfrkt_t.pfrt_name
838 #define pfrkt_anchor pfrkt_t.pfrt_anchor
839 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
840 #define pfrkt_flags pfrkt_t.pfrt_flags
841 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
842 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
843 #define pfrkt_packets pfrkt_ts.pfrts_packets
844 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
845 #define pfrkt_match pfrkt_ts.pfrts_match
846 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
847 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
849 RB_HEAD(pf_state_tree_lan_ext, pf_state);
850 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state,
851 u.s.entry_lan_ext, pf_state_compare_lan_ext);
853 RB_HEAD(pf_state_tree_ext_gwy, pf_state);
854 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state,
855 u.s.entry_ext_gwy, pf_state_compare_ext_gwy);
858 char pfif_name[IFNAMSIZ];
859 u_int64_t pfif_packets[2][2][2];
860 u_int64_t pfif_bytes[2][2][2];
861 u_int64_t pfif_addcnt;
862 u_int64_t pfif_delcnt;
869 TAILQ_HEAD(pfi_grouphead, pfi_kif);
870 TAILQ_HEAD(pfi_statehead, pfi_kif);
871 RB_HEAD(pfi_ifhead, pfi_kif);
873 struct pfi_if pfik_if;
874 RB_ENTRY(pfi_kif) pfik_tree;
875 struct pf_state_tree_lan_ext pfik_lan_ext;
876 struct pf_state_tree_ext_gwy pfik_ext_gwy;
877 struct pfi_grouphead pfik_grouphead;
878 TAILQ_ENTRY(pfi_kif) pfik_instances;
879 TAILQ_ENTRY(pfi_kif) pfik_w_states;
880 struct hook_desc_head *pfik_ah_head;
881 void *pfik_ah_cookie;
882 struct pfi_kif *pfik_parent;
883 struct ifnet *pfik_ifp;
887 #define pfik_name pfik_if.pfif_name
888 #define pfik_packets pfik_if.pfif_packets
889 #define pfik_bytes pfik_if.pfif_bytes
890 #define pfik_tzero pfik_if.pfif_tzero
891 #define pfik_flags pfik_if.pfif_flags
892 #define pfik_addcnt pfik_if.pfif_addcnt
893 #define pfik_delcnt pfik_if.pfif_delcnt
894 #define pfik_states pfik_if.pfif_states
895 #define pfik_rules pfik_if.pfif_rules
897 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */
898 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */
899 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */
900 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */
901 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */
902 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */
905 u_int64_t tot_len; /* Make Mickey money */
911 struct icmp6_hdr *icmp6;
915 struct pf_addr baddr; /* address before translation */
916 struct pf_addr naddr; /* address after translation */
917 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
921 u_int32_t p_len; /* total length of payload */
922 u_int16_t flags; /* Let SCRUB trigger behavior in
923 * state code. Easier than tags */
924 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
930 /* flags for RDR options */
931 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
932 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
934 /* Reasons code for passing/dropping a packet */
935 #define PFRES_MATCH 0 /* Explicit match of a rule */
936 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
937 #define PFRES_FRAG 2 /* Dropping following fragment */
938 #define PFRES_SHORT 3 /* Dropping short packet */
939 #define PFRES_NORM 4 /* Dropping by normalizer */
940 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
941 #define PFRES_MAX 6 /* total+1 */
943 #define PFRES_NAMES { \
953 /* UDP state enumeration */
954 #define PFUDPS_NO_TRAFFIC 0
955 #define PFUDPS_SINGLE 1
956 #define PFUDPS_MULTIPLE 2
958 #define PFUDPS_NSTATES 3 /* number of state levels */
960 #define PFUDPS_NAMES { \
967 /* Other protocol state enumeration */
968 #define PFOTHERS_NO_TRAFFIC 0
969 #define PFOTHERS_SINGLE 1
970 #define PFOTHERS_MULTIPLE 2
972 #define PFOTHERS_NSTATES 3 /* number of state levels */
974 #define PFOTHERS_NAMES { \
981 #define FCNT_STATE_SEARCH 0
982 #define FCNT_STATE_INSERT 1
983 #define FCNT_STATE_REMOVALS 2
986 #define SCNT_SRC_NODE_SEARCH 0
987 #define SCNT_SRC_NODE_INSERT 1
988 #define SCNT_SRC_NODE_REMOVALS 2
991 #define ACTION_SET(a, x) \
997 #define REASON_SET(a, x) \
1001 if (x < PFRES_MAX) \
1002 pf_status.counters[x]++; \
1006 u_int64_t counters[PFRES_MAX];
1007 u_int64_t fcounters[FCNT_MAX];
1008 u_int64_t scounters[SCNT_MAX];
1009 u_int64_t pcounters[2][2][3];
1010 u_int64_t bcounters[2][2];
1014 u_int32_t src_nodes;
1018 char ifname[IFNAMSIZ];
1038 /* real-time service curve */
1039 u_int rtsc_m1; /* slope of the 1st segment in bps */
1040 u_int rtsc_d; /* the x-projection of m1 in msec */
1041 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1042 /* link-sharing service curve */
1046 /* upper-limit service curve */
1054 * XXX this needs some work
1057 u_int nbuckets; /* hash buckets */
1058 u_int hogs_m1; /* hog detection bandwidth */
1061 /* link-sharing service curve */
1068 char ifname[IFNAMSIZ];
1070 void *altq_disc; /* discipline-specific state */
1071 TAILQ_ENTRY(pf_altq) entries;
1073 /* scheduler spec */
1074 u_int8_t scheduler; /* scheduler type */
1075 u_int16_t tbrsize; /* tokenbucket regulator size */
1076 u_int32_t ifbandwidth; /* interface bandwidth */
1079 char qname[PF_QNAME_SIZE]; /* queue name */
1080 char parent[PF_QNAME_SIZE]; /* parent name */
1081 u_int32_t parent_qid; /* parent queue id */
1082 u_int32_t bandwidth; /* queue bandwidth */
1083 u_int8_t priority; /* priority */
1084 u_int16_t qlimit; /* queue size limit */
1085 u_int16_t flags; /* misc flags */
1087 struct cbq_opts cbq_opts;
1088 struct priq_opts priq_opts;
1089 struct hfsc_opts hfsc_opts;
1090 struct fairq_opts fairq_opts;
1093 u_int32_t qid; /* return value */
1097 TAILQ_ENTRY(pf_tagname) entries;
1098 char name[PF_TAG_NAME_SIZE];
1103 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1104 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1105 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1106 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1109 * ioctl parameter structures
1112 struct pfioc_pooladdr {
1120 char anchor[PF_ANCHOR_NAME_SIZE];
1121 char ruleset[PF_RULESET_NAME_SIZE];
1122 struct pf_pooladdr addr;
1128 u_int32_t pool_ticket;
1130 char anchor[PF_ANCHOR_NAME_SIZE];
1131 char ruleset[PF_RULESET_NAME_SIZE];
1132 struct pf_rule rule;
1135 struct pfioc_natlook {
1136 struct pf_addr saddr;
1137 struct pf_addr daddr;
1138 struct pf_addr rsaddr;
1139 struct pf_addr rdaddr;
1149 struct pfioc_state {
1151 struct pf_state state;
1154 struct pfioc_state_kill {
1155 /* XXX returns the number of states killed in psk_af */
1158 struct pf_rule_addr psk_src;
1159 struct pf_rule_addr psk_dst;
1160 char psk_ifname[IFNAMSIZ];
1163 struct pfioc_states {
1167 struct pf_state *psu_states;
1169 #define ps_buf ps_u.psu_buf
1170 #define ps_states ps_u.psu_states
1173 struct pfioc_src_nodes {
1177 struct pf_src_node *psu_src_nodes;
1179 #define psn_buf psn_u.psu_buf
1180 #define psn_src_nodes psn_u.psu_src_nodes
1184 char ifname[IFNAMSIZ];
1192 struct pfioc_limit {
1201 struct pf_altq altq;
1204 struct pfioc_qstats {
1212 struct pfioc_anchor {
1214 char name[PF_ANCHOR_NAME_SIZE];
1217 struct pfioc_ruleset {
1219 char anchor[PF_ANCHOR_NAME_SIZE];
1220 char name[PF_RULESET_NAME_SIZE];
1223 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1224 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1225 struct pfioc_trans {
1226 int size; /* number of elements */
1227 int esize; /* size of each element in bytes */
1228 struct pfioc_trans_e {
1230 char anchor[PF_ANCHOR_NAME_SIZE];
1231 char ruleset[PF_RULESET_NAME_SIZE];
1236 #define PFR_FLAG_ATOMIC 0x00000001
1237 #define PFR_FLAG_DUMMY 0x00000002
1238 #define PFR_FLAG_FEEDBACK 0x00000004
1239 #define PFR_FLAG_CLSTATS 0x00000008
1240 #define PFR_FLAG_ADDRSTOO 0x00000010
1241 #define PFR_FLAG_REPLACE 0x00000020
1242 #define PFR_FLAG_ALLRSETS 0x00000040
1243 #define PFR_FLAG_ALLMASK 0x0000007F
1245 #define PFR_FLAG_USERIOCTL 0x10000000
1248 struct pfioc_table {
1249 struct pfr_table pfrio_table;
1258 u_int32_t pfrio_ticket;
1260 #define pfrio_exists pfrio_nadd
1261 #define pfrio_nzero pfrio_nadd
1262 #define pfrio_nmatch pfrio_nadd
1263 #define pfrio_naddr pfrio_size2
1264 #define pfrio_setflag pfrio_size2
1265 #define pfrio_clrflag pfrio_nadd
1268 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */
1269 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */
1270 #define PFI_FLAG_ALLMASK 0x0003
1272 struct pfioc_iface {
1273 char pfiio_name[IFNAMSIZ];
1286 #define DIOCSTART _IO ('D', 1)
1287 #define DIOCSTOP _IO ('D', 2)
1288 #define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule)
1289 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1290 #define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule)
1291 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1292 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1293 /* XXX cut 8 - 17 */
1294 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1295 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1296 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1297 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1298 #define DIOCCLRSTATUS _IO ('D', 22)
1299 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1300 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1301 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1302 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1303 /* XXX cut 26 - 28 */
1304 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1305 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1306 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1307 #define DIOCCLRRULECTRS _IO ('D', 38)
1308 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1309 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1310 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1311 #define DIOCSTARTALTQ _IO ('D', 42)
1312 #define DIOCSTOPALTQ _IO ('D', 43)
1313 #define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t)
1314 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1315 #define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t)
1316 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1317 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1318 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1319 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1320 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1321 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1322 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1323 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1324 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1325 #define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor)
1326 #define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor)
1327 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1328 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1329 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1330 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1331 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1332 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1333 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1334 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1335 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1336 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1337 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1338 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1339 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1340 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1341 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1342 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1343 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1344 #define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table)
1345 #define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table)
1346 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1347 #define DIOCOSFPFLUSH _IO('D', 78)
1348 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1349 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1350 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1351 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1352 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1353 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1354 #define DIOCCLRSRCNODES _IO('D', 85)
1355 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1356 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1357 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface)
1359 char ifname[IFNAMSIZ];
1362 #define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed)
1365 RB_HEAD(pf_src_tree, pf_src_node);
1366 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1367 extern struct pf_src_tree tree_src_tracking;
1369 RB_HEAD(pf_state_tree_id, pf_state);
1370 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1371 entry_id, pf_state_compare_id);
1372 extern struct pf_state_tree_id tree_id;
1373 extern struct pf_state_queue state_updates;
1375 extern struct pf_anchorqueue pf_anchors;
1376 extern struct pf_ruleset pf_main_ruleset;
1377 TAILQ_HEAD(pf_poolqueue, pf_pool);
1378 extern struct pf_poolqueue pf_pools[2];
1379 TAILQ_HEAD(pf_altqqueue, pf_altq);
1380 extern struct pf_altqqueue pf_altqs[2];
1381 extern struct pf_palist pf_pabuf;
1382 extern struct pfi_kif **pfi_index2kif;
1384 extern u_int32_t ticket_altqs_active;
1385 extern u_int32_t ticket_altqs_inactive;
1386 extern int altqs_inactive_open;
1387 extern u_int32_t ticket_pabuf;
1388 extern struct pf_altqqueue *pf_altqs_active;
1389 extern struct pf_altqqueue *pf_altqs_inactive;
1390 extern struct pf_poolqueue *pf_pools_active;
1391 extern struct pf_poolqueue *pf_pools_inactive;
1392 extern int pf_tbladdr_setup(struct pf_ruleset *,
1393 struct pf_addr_wrap *);
1394 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1395 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1396 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1397 extern void pf_update_anchor_rules(void);
1398 extern vm_zone_t pf_src_tree_pl, pf_rule_pl;
1399 extern vm_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1400 extern vm_zone_t pfr_ktable_pl, pfr_kentry_pl;
1401 extern vm_zone_t pf_cache_pl, pf_cent_pl;
1402 extern vm_zone_t pf_state_scrub_pl;
1403 extern vm_zone_t pfi_addr_pl;
1404 extern void pf_purge_timeout(void *);
1405 extern void pf_purge_expired_src_nodes(void);
1406 extern void pf_purge_expired_states(void);
1407 extern int pf_insert_state(struct pfi_kif *,
1409 extern int pf_insert_src_node(struct pf_src_node **,
1410 struct pf_rule *, struct pf_addr *,
1412 void pf_src_tree_remove_state(struct pf_state *);
1413 u_int32_t pf_state_hash(struct pf_state *s);
1414 extern struct pf_state *pf_find_state_byid(struct pf_state *);
1415 extern struct pf_state *pf_find_state_all(struct pf_state *key,
1416 u_int8_t tree, int *more);
1417 extern struct pf_anchor *pf_find_anchor(const char *);
1418 extern struct pf_ruleset *pf_find_ruleset(char *, char *);
1419 extern struct pf_ruleset *pf_find_or_create_ruleset(
1420 char[PF_ANCHOR_NAME_SIZE],
1421 char[PF_RULESET_NAME_SIZE]);
1422 extern void pf_remove_if_empty_ruleset(
1423 struct pf_ruleset *);
1425 extern struct ifnet *sync_ifp;
1426 extern struct pf_rule pf_default_rule;
1427 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1429 void pf_rm_rule(struct pf_rulequeue *,
1433 int pf_test(int, struct ifnet *, struct mbuf **);
1437 int pf_test6(int, struct ifnet *, struct mbuf **);
1438 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1439 struct pf_addr *, struct pf_addr *, u_int8_t);
1440 void pf_addr_inc(struct pf_addr *, sa_family_t);
1443 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1445 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1446 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1447 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *);
1448 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1449 struct pf_addr *, sa_family_t);
1450 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1451 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1452 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1453 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1455 void pf_normalize_init(void);
1456 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *);
1457 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *);
1458 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1460 void pf_normalize_tcp_cleanup(struct pf_state *);
1461 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1462 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1463 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1464 u_short *, struct tcphdr *, struct pf_state_peer *,
1465 struct pf_state_peer *, int *);
1467 pf_state_expires(const struct pf_state *);
1468 void pf_purge_expired_fragments(void);
1469 int pf_routable(struct pf_addr *addr, sa_family_t af);
1470 void pfr_initialize(void);
1471 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1472 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1473 u_int64_t, int, int, int);
1474 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1475 struct pf_addr **, struct pf_addr **, sa_family_t);
1476 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1478 pfr_attach_table(struct pf_ruleset *, char *);
1479 void pfr_detach_table(struct pfr_ktable *);
1480 int pfr_clr_tables(struct pfr_table *, int *, int);
1481 int pfr_add_tables(struct pfr_table *, int, int *, int);
1482 int pfr_del_tables(struct pfr_table *, int, int *, int);
1483 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1484 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1485 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1486 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1487 int pfr_clr_addrs(struct pfr_table *, int *, int);
1488 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1490 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1492 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1493 int *, int *, int *, int);
1494 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1495 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1496 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1498 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1500 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1501 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1502 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1503 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1504 int *, u_int32_t, int);
1506 void pfi_initialize(void);
1507 void pfi_cleanup(void);
1508 void pfi_attach_clone(struct if_clone *);
1509 void pfi_attach_ifnet(struct ifnet *);
1510 void pfi_detach_ifnet(struct ifnet *);
1511 struct pfi_kif *pfi_lookup_create(const char *);
1512 struct pfi_kif *pfi_lookup_if(const char *);
1513 int pfi_maybe_destroy(struct pfi_kif *);
1514 struct pfi_kif *pfi_attach_rule(const char *);
1515 void pfi_detach_rule(struct pfi_kif *);
1516 void pfi_attach_state(struct pfi_kif *);
1517 void pfi_detach_state(struct pfi_kif *);
1518 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1519 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1520 void pfi_dynaddr_remove(struct pf_addr_wrap *);
1521 void pfi_fill_oldstatus(struct pf_status *);
1522 int pfi_clr_istats(const char *, int *, int);
1523 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int);
1524 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1527 extern struct pfi_statehead pfi_statehead;
1529 u_int16_t pf_tagname2tag(char *);
1530 void pf_tag2tagname(u_int16_t, char *);
1531 void pf_tag_unref(u_int16_t);
1532 void pf_tag_packet(struct mbuf *, int);
1533 u_int32_t pf_qname2qid(char *);
1534 void pf_qid2qname(u_int32_t, char *);
1535 void pf_qid_unref(u_int32_t);
1537 extern struct pf_status pf_status;
1538 extern vm_zone_t pf_frent_pl, pf_frag_pl;
1540 struct pf_pool_limit {
1544 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1547 LIST_ENTRY(pf_frent) fr_next;
1553 LIST_ENTRY(pf_frcache) fr_next;
1558 struct pf_fragment {
1559 RB_ENTRY(pf_fragment) fr_entry;
1560 TAILQ_ENTRY(pf_fragment) frag_next;
1561 struct in_addr fr_src;
1562 struct in_addr fr_dst;
1563 u_int8_t fr_p; /* protocol of this fragment */
1564 u_int8_t fr_flags; /* status flags */
1565 u_int16_t fr_id; /* fragment id for reassemble */
1566 u_int16_t fr_max; /* fragment data max */
1567 u_int32_t fr_timeout;
1568 #define fr_queue fr_u.fru_queue
1569 #define fr_cache fr_u.fru_cache
1571 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
1572 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
1575 #endif /* _KERNEL */
1577 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1578 int pf_osfp_add(struct pf_osfp_ioctl *);
1580 struct pf_osfp_enlist *
1581 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1582 const struct tcphdr *);
1583 #endif /* _KERNEL */
1584 struct pf_osfp_enlist *
1585 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *);
1586 void pf_osfp_flush(void);
1587 int pf_osfp_get(struct pf_osfp_ioctl *);
1588 int pf_osfp_initialize(void);
1589 void pf_osfp_cleanup(void);
1590 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1591 struct pf_os_fingerprint *
1592 pf_osfp_validate(void);
1595 #endif /* _NET_PFVAR_H_ */