1 /* $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $ */
4 * Copyright (c) 2001 Daniel Hartmeier
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
36 #include <sys/param.h>
37 #include <sys/types.h>
38 #include <sys/queue.h>
44 #include <sys/rwlock.h>
47 #include <net/radix.h>
48 #include <net/route.h>
50 #include <net/if_clone.h>
51 #include <net/pf_mtag.h>
54 #include <netinet/ip_ipsp.h>
58 #include <netinet/in.h>
61 #include <netinet/tcp_fsm.h>
69 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
70 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
72 #define PF_MD5_DIGEST_LENGTH 16
73 #ifdef MD5_DIGEST_LENGTH
74 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
79 enum { PF_INOUT, PF_IN, PF_OUT };
80 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
81 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, PF_DEFER };
82 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
83 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
84 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
85 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
86 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
87 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
88 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
89 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
90 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
91 enum { PF_SK_WIRE, PF_SK_STACK, PF_SK_BOTH };
94 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
95 * PFTM_MAX, special cases afterwards. See pf_state_expires().
97 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
98 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
99 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
100 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
101 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
102 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
103 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
104 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
107 /* PFTM default values */
108 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
109 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */
110 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */
111 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */
112 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
113 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
114 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
115 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
116 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
117 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
118 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
119 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
120 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
121 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
122 #define PFTM_FRAG_VAL 30 /* Fragment expire */
123 #define PFTM_INTERVAL_VAL 10 /* Expire interval */
124 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */
125 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
127 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
128 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
129 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
130 #define PF_POOL_IDMASK 0x0f
131 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
132 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
133 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
134 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED,
136 #define PF_POOL_TYPEMASK 0x0f
137 #define PF_POOL_STICKYADDR 0x20
138 #define PF_WSCALE_FLAG 0x80
139 #define PF_WSCALE_MASK 0x0f
142 #define PF_LOG_ALL 0x02
143 #define PF_LOG_SOCKET_LOOKUP 0x04
152 } pfa; /* 128-bit address */
155 #define addr8 pfa.addr8
156 #define addr16 pfa.addr16
157 #define addr32 pfa.addr32
160 #define PF_TABLE_NAME_SIZE 32
162 #define PFI_AFLAG_NETWORK 0x01
163 #define PFI_AFLAG_BROADCAST 0x02
164 #define PFI_AFLAG_PEER 0x04
165 #define PFI_AFLAG_MODEMASK 0x07
166 #define PFI_AFLAG_NOALIAS 0x08
168 struct pf_addr_wrap {
174 char ifname[IFNAMSIZ];
175 char tblname[PF_TABLE_NAME_SIZE];
177 #define RTLABEL_LEN 32
179 char rtlabelname[RTLABEL_LEN];
183 struct pfi_dynaddr *dyn;
184 struct pfr_ktable *tbl;
188 u_int8_t type; /* PF_ADDR_* */
189 u_int8_t iflags; /* PFI_AFLAG_* */
195 TAILQ_ENTRY(pfi_dynaddr) entry;
196 struct pf_addr pfid_addr4;
197 struct pf_addr pfid_mask4;
198 struct pf_addr pfid_addr6;
199 struct pf_addr pfid_mask6;
200 struct pfr_ktable *pfid_kt;
201 struct pfi_kif *pfid_kif;
202 void *pfid_hook_cookie;
203 int pfid_net; /* mask or 128 */
204 int pfid_acnt4; /* address count IPv4 */
205 int pfid_acnt6; /* address count IPv6 */
206 sa_family_t pfid_af; /* rule af */
207 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
211 * Address manipulation macros
215 #define splsoftnet() splnet()
217 #define HTONL(x) (x) = htonl((__uint32_t)(x))
218 #define HTONS(x) (x) = htons((__uint16_t)(x))
219 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
220 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
224 #define PR_NOWAIT M_NOWAIT
225 #define PR_WAITOK M_WAIT
226 #define PR_ZERO M_ZERO
227 #define pool_get(p, f) uma_zalloc(*(p), (f))
228 #define pool_put(p, o) uma_zfree(*(p), (o))
230 #define UMA_CREATE(var, type, desc) \
231 var = uma_zcreate(desc, sizeof(type), \
232 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \
235 #define UMA_DESTROY(var) \
240 VNET_DECLARE(struct mtx, pf_task_mtx);
241 #define V_pf_task_mtx VNET(pf_task_mtx)
243 #define PF_ASSERT(h) mtx_assert(&V_pf_task_mtx, (h))
245 #define PF_LOCK() do { \
246 PF_ASSERT(MA_NOTOWNED); \
247 mtx_lock(&V_pf_task_mtx); \
249 #define PF_UNLOCK() do { \
250 PF_ASSERT(MA_OWNED); \
251 mtx_unlock(&V_pf_task_mtx); \
254 extern struct mtx pf_task_mtx;
256 #define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h))
258 #define PF_LOCK() do { \
259 PF_ASSERT(MA_NOTOWNED); \
260 mtx_lock(&pf_task_mtx); \
262 #define PF_UNLOCK() do { \
263 PF_ASSERT(MA_OWNED); \
264 mtx_unlock(&pf_task_mtx); \
268 #define PF_COPYIN(uaddr, kaddr, len, r) do { \
270 r = copyin((uaddr), (kaddr), (len)); \
274 #define PF_COPYOUT(kaddr, uaddr, len, r) do { \
276 r = copyout((kaddr), (uaddr), (len)); \
280 extern void init_pf_mutex(void);
281 extern void destroy_pf_mutex(void);
284 #define PFLOG_MODVER 1
285 #define PFSYNC_MODVER 1
287 #define PFLOG_MINVER 1
288 #define PFLOG_PREFVER PFLOG_MODVER
289 #define PFLOG_MAXVER 1
290 #define PFSYNC_MINVER 1
291 #define PFSYNC_PREFVER PFSYNC_MODVER
292 #define PFSYNC_MAXVER 1
293 #endif /* __FreeBSD__ */
302 #define PF_INET6_ONLY
308 #define PF_INET_INET6
314 #define PF_INET_INET6
318 /* Both IPv4 and IPv6 */
321 #define PF_AEQ(a, b, c) \
322 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
323 ((a)->addr32[3] == (b)->addr32[3] && \
324 (a)->addr32[2] == (b)->addr32[2] && \
325 (a)->addr32[1] == (b)->addr32[1] && \
326 (a)->addr32[0] == (b)->addr32[0])) \
328 #define PF_ANEQ(a, b, c) \
329 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
330 ((a)->addr32[3] != (b)->addr32[3] || \
331 (a)->addr32[2] != (b)->addr32[2] || \
332 (a)->addr32[1] != (b)->addr32[1] || \
333 (a)->addr32[0] != (b)->addr32[0])) \
335 #define PF_AZERO(a, c) \
336 ((c == AF_INET && !(a)->addr32[0]) || \
337 (!(a)->addr32[0] && !(a)->addr32[1] && \
338 !(a)->addr32[2] && !(a)->addr32[3] )) \
340 #define PF_MATCHA(n, a, m, b, f) \
341 pf_match_addr(n, a, m, b, f)
343 #define PF_ACPY(a, b, f) \
346 #define PF_AINC(a, f) \
349 #define PF_POOLMASK(a, b, c, d, f) \
350 pf_poolmask(a, b, c, d, f)
358 #define PF_AEQ(a, b, c) \
359 ((a)->addr32[3] == (b)->addr32[3] && \
360 (a)->addr32[2] == (b)->addr32[2] && \
361 (a)->addr32[1] == (b)->addr32[1] && \
362 (a)->addr32[0] == (b)->addr32[0]) \
364 #define PF_ANEQ(a, b, c) \
365 ((a)->addr32[3] != (b)->addr32[3] || \
366 (a)->addr32[2] != (b)->addr32[2] || \
367 (a)->addr32[1] != (b)->addr32[1] || \
368 (a)->addr32[0] != (b)->addr32[0]) \
370 #define PF_AZERO(a, c) \
371 (!(a)->addr32[0] && \
376 #define PF_MATCHA(n, a, m, b, f) \
377 pf_match_addr(n, a, m, b, f)
379 #define PF_ACPY(a, b, f) \
382 #define PF_AINC(a, f) \
385 #define PF_POOLMASK(a, b, c, d, f) \
386 pf_poolmask(a, b, c, d, f)
393 #define PF_AEQ(a, b, c) \
394 ((a)->addr32[0] == (b)->addr32[0])
396 #define PF_ANEQ(a, b, c) \
397 ((a)->addr32[0] != (b)->addr32[0])
399 #define PF_AZERO(a, c) \
402 #define PF_MATCHA(n, a, m, b, f) \
403 pf_match_addr(n, a, m, b, f)
405 #define PF_ACPY(a, b, f) \
406 (a)->v4.s_addr = (b)->v4.s_addr
408 #define PF_AINC(a, f) \
410 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
413 #define PF_POOLMASK(a, b, c, d, f) \
415 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
416 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
419 #endif /* PF_INET_ONLY */
420 #endif /* PF_INET6_ONLY */
421 #endif /* PF_INET_INET6 */
423 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
425 (((aw)->type == PF_ADDR_NOROUTE && \
426 pf_routable((x), (af), NULL)) || \
427 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
428 pf_routable((x), (af), (ifp))) || \
429 ((aw)->type == PF_ADDR_RTLABEL && \
430 !pf_rtlabel_match((x), (af), (aw))) || \
431 ((aw)->type == PF_ADDR_TABLE && \
432 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
433 ((aw)->type == PF_ADDR_DYNIFTL && \
434 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
435 ((aw)->type == PF_ADDR_RANGE && \
436 !pf_match_addr_range(&(aw)->v.a.addr, \
437 &(aw)->v.a.mask, (x), (af))) || \
438 ((aw)->type == PF_ADDR_ADDRMASK && \
439 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
440 !PF_MATCHA(0, &(aw)->v.a.addr, \
441 &(aw)->v.a.mask, (x), (af))))) != \
456 struct pf_rule_addr {
457 struct pf_addr_wrap addr;
464 struct pf_addr_wrap addr;
465 TAILQ_ENTRY(pf_pooladdr) entries;
466 char ifname[IFNAMSIZ];
470 TAILQ_HEAD(pf_palist, pf_pooladdr);
472 struct pf_poolhashkey {
477 } pfk; /* 128-bit hash key */
478 #define key8 pfk.key8
479 #define key16 pfk.key16
480 #define key32 pfk.key32
484 struct pf_palist list;
485 struct pf_pooladdr *cur;
486 struct pf_poolhashkey key;
487 struct pf_addr counter;
489 u_int16_t proxy_port[2];
495 /* A packed Operating System description for fingerprinting */
496 typedef u_int32_t pf_osfp_t;
497 #define PF_OSFP_ANY ((pf_osfp_t)0)
498 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
499 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
501 struct pf_osfp_entry {
502 SLIST_ENTRY(pf_osfp_entry) fp_entry;
505 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
506 #define PF_OSFP_GENERIC 0x002 /* generic signature */
507 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
508 #define PF_OSFP_LEN 32
509 char fp_class_nm[PF_OSFP_LEN];
510 char fp_version_nm[PF_OSFP_LEN];
511 char fp_subtype_nm[PF_OSFP_LEN];
513 #define PF_OSFP_ENTRY_EQ(a, b) \
514 ((a)->fp_os == (b)->fp_os && \
515 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
516 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
517 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
519 /* handle pf_osfp_t packing */
520 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
521 #define _FP_UNUSED_BITS 1
522 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
523 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
524 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
525 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
526 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
527 ((1 << _FP_CLASS_BITS) - 1); \
528 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
529 ((1 << _FP_VERSION_BITS) - 1);\
530 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
532 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
533 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
534 + _FP_SUBTYPE_BITS); \
535 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
537 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
540 /* the fingerprint of an OSes TCP SYN packet */
541 typedef u_int64_t pf_tcpopts_t;
542 struct pf_os_fingerprint {
543 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
544 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
545 u_int16_t fp_wsize; /* TCP window size */
546 u_int16_t fp_psize; /* ip->ip_len */
547 u_int16_t fp_mss; /* TCP MSS */
549 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
550 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
551 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
552 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
553 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
554 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
555 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
556 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
557 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
558 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
559 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
560 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
561 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
562 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
563 #define PF_OSFP_INET6 0x4000 /* IPv6 */
564 u_int8_t fp_optcnt; /* TCP option count */
565 u_int8_t fp_wscale; /* TCP window scaling */
566 u_int8_t fp_ttl; /* IPv4 TTL */
567 #define PF_OSFP_MAXTTL_OFFSET 40
568 /* TCP options packing */
569 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
570 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
571 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
572 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
573 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
574 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
575 #define PF_OSFP_MAX_OPTS \
576 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
577 / PF_OSFP_TCPOPT_BITS
579 SLIST_ENTRY(pf_os_fingerprint) fp_next;
582 struct pf_osfp_ioctl {
583 struct pf_osfp_entry fp_os;
584 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
585 u_int16_t fp_wsize; /* TCP window size */
586 u_int16_t fp_psize; /* ip->ip_len */
587 u_int16_t fp_mss; /* TCP MSS */
589 u_int8_t fp_optcnt; /* TCP option count */
590 u_int8_t fp_wscale; /* TCP window scaling */
591 u_int8_t fp_ttl; /* IPv4 TTL */
593 int fp_getnum; /* DIOCOSFPGET number */
602 #define PF_ANCHOR_NAME_SIZE 64
605 struct pf_rule_addr src;
606 struct pf_rule_addr dst;
607 #define PF_SKIP_IFP 0
608 #define PF_SKIP_DIR 1
610 #define PF_SKIP_PROTO 3
611 #define PF_SKIP_SRC_ADDR 4
612 #define PF_SKIP_SRC_PORT 5
613 #define PF_SKIP_DST_ADDR 6
614 #define PF_SKIP_DST_PORT 7
615 #define PF_SKIP_COUNT 8
616 union pf_rule_ptr skip[PF_SKIP_COUNT];
617 #define PF_RULE_LABEL_SIZE 64
618 char label[PF_RULE_LABEL_SIZE];
619 #define PF_QNAME_SIZE 64
620 char ifname[IFNAMSIZ];
621 char qname[PF_QNAME_SIZE];
622 char pqname[PF_QNAME_SIZE];
623 #define PF_TAG_NAME_SIZE 64
624 char tagname[PF_TAG_NAME_SIZE];
625 char match_tagname[PF_TAG_NAME_SIZE];
627 char overload_tblname[PF_TABLE_NAME_SIZE];
629 TAILQ_ENTRY(pf_rule) entries;
630 struct pf_pool rpool;
632 u_int64_t evaluations;
633 u_int64_t packets[2];
637 struct pf_anchor *anchor;
638 struct pfr_ktable *overload_tbl;
640 pf_osfp_t os_fingerprint;
643 u_int32_t timeout[PFTM_MAX];
644 u_int32_t states_cur;
645 u_int32_t states_tot;
646 u_int32_t max_states;
648 u_int32_t max_src_nodes;
649 u_int32_t max_src_states;
650 u_int32_t spare1; /* netgraph */
651 u_int32_t max_src_conn;
664 u_int16_t return_icmp;
665 u_int16_t return_icmp6;
669 u_int16_t spare2; /* netgraph */
671 struct pf_rule_uid uid;
672 struct pf_rule_gid gid;
681 u_int8_t match_tag_not;
684 #define PF_STATE_NORMAL 0x1
685 #define PF_STATE_MODULATE 0x2
686 #define PF_STATE_SYNPROXY 0x3
700 u_int8_t anchor_relative;
701 u_int8_t anchor_wildcard;
703 #define PF_FLUSH 0x01
704 #define PF_FLUSH_GLOBAL 0x02
714 #define PFRULE_DROP 0x0000
715 #define PFRULE_RETURNRST 0x0001
716 #define PFRULE_FRAGMENT 0x0002
717 #define PFRULE_RETURNICMP 0x0004
718 #define PFRULE_RETURN 0x0008
719 #define PFRULE_NOSYNC 0x0010
720 #define PFRULE_SRCTRACK 0x0020 /* track source states */
721 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
724 #define PFRULE_NODF 0x0100
725 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
726 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
727 #define PFRULE_RANDOMID 0x0800
728 #define PFRULE_REASSEMBLE_TCP 0x1000
729 #define PFRULE_SET_TOS 0x2000
731 /* rule flags again */
732 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
733 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
734 #define PFRULE_PFLOW 0x00040000
736 #define PFSTATE_HIWAT 10000 /* default state table size */
737 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
738 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
741 struct pf_threshold {
743 #define PF_THRESHOLD_MULT 1000
744 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
751 RB_ENTRY(pf_src_node) entry;
753 struct pf_addr raddr;
754 union pf_rule_ptr rule;
757 u_int64_t packets[2];
760 struct pf_threshold conn_rate;
767 #define PFSNODE_HIWAT 10000 /* default source node table size */
769 struct pf_state_scrub {
770 struct timeval pfss_last; /* time received last packet */
771 u_int32_t pfss_tsecr; /* last echoed timestamp */
772 u_int32_t pfss_tsval; /* largest timestamp */
773 u_int32_t pfss_tsval0; /* original timestamp */
774 u_int16_t pfss_flags;
775 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
776 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
777 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
778 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
779 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
780 u_int8_t pfss_ttl; /* stashed TTL */
782 u_int32_t pfss_ts_mod; /* timestamp modulation */
785 struct pf_state_host {
791 struct pf_state_peer {
792 struct pf_state_scrub *scrub; /* state is scrubbed */
793 u_int32_t seqlo; /* Max sequence number sent */
794 u_int32_t seqhi; /* Max the other end ACKd + win */
795 u_int32_t seqdiff; /* Sequence number modulator */
796 u_int16_t max_win; /* largest window (pre scaling) */
797 u_int16_t mss; /* Maximum segment size option */
798 u_int8_t state; /* active state level */
799 u_int8_t wscale; /* window scaling factor */
800 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
804 TAILQ_HEAD(pf_state_queue, pf_state);
806 /* keep synced with struct pf_state_key, used in RB_FIND */
807 struct pf_state_key_cmp {
808 struct pf_addr addr[2];
815 struct pf_state_item {
816 TAILQ_ENTRY(pf_state_item) entry;
820 TAILQ_HEAD(pf_statelisthead, pf_state_item);
822 struct pf_state_key {
823 struct pf_addr addr[2];
829 RB_ENTRY(pf_state_key) entry;
830 struct pf_statelisthead states;
831 struct pf_state_key *reverse;
835 /* keep synced with struct pf_state, used in RB_FIND */
836 struct pf_state_cmp {
849 u_int8_t local_flags;
850 #define PFSTATE_EXPIRING 0x01
855 TAILQ_ENTRY(pf_state) sync_list;
856 TAILQ_ENTRY(pf_state) entry_list;
857 RB_ENTRY(pf_state) entry_id;
858 struct pf_state_peer src;
859 struct pf_state_peer dst;
860 union pf_rule_ptr rule;
861 union pf_rule_ptr anchor;
862 union pf_rule_ptr nat_rule;
863 struct pf_addr rt_addr;
864 struct pf_state_key *key[2]; /* addresses stack and wire */
866 struct pfi_kif *rt_kif;
867 struct pf_src_node *src_node;
868 struct pf_src_node *nat_src_node;
869 u_int64_t packets[2];
873 u_int32_t pfsync_time;
876 u_int8_t state_flags;
877 #define PFSTATE_ALLOWOPTS 0x01
878 #define PFSTATE_SLOPPY 0x02
879 #define PFSTATE_PFLOW 0x04
880 #define PFSTATE_NOSYNC 0x08
881 #define PFSTATE_ACK 0x10
883 u_int8_t sync_state; /* PFSYNC_S_x */
886 u_int8_t sync_updates;
891 * Unified state structures for pulling states out of the kernel
892 * used by pfsync(4) and the pf(4) ioctl.
894 struct pfsync_state_scrub {
895 u_int16_t pfss_flags;
896 u_int8_t pfss_ttl; /* stashed TTL */
897 #define PFSYNC_SCRUB_FLAG_VALID 0x01
899 u_int32_t pfss_ts_mod; /* timestamp modulation */
902 struct pfsync_state_peer {
903 struct pfsync_state_scrub scrub; /* state is scrubbed */
904 u_int32_t seqlo; /* Max sequence number sent */
905 u_int32_t seqhi; /* Max the other end ACKd + win */
906 u_int32_t seqdiff; /* Sequence number modulator */
907 u_int16_t max_win; /* largest window (pre scaling) */
908 u_int16_t mss; /* Maximum segment size option */
909 u_int8_t state; /* active state level */
910 u_int8_t wscale; /* window scaling factor */
914 struct pfsync_state_key {
915 struct pf_addr addr[2];
919 struct pfsync_state {
921 char ifname[IFNAMSIZ];
922 struct pfsync_state_key key[2];
923 struct pfsync_state_peer src;
924 struct pfsync_state_peer dst;
925 struct pf_addr rt_addr;
931 u_int32_t packets[2][2];
932 u_int32_t bytes[2][2];
938 u_int8_t local_flags;
939 #define PFSTATE_EXPIRING 0x01
943 u_int8_t state_flags;
952 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
953 typedef void pfsync_insert_state_t(struct pf_state *);
954 typedef void pfsync_update_state_t(struct pf_state *);
955 typedef void pfsync_delete_state_t(struct pf_state *);
956 typedef void pfsync_clear_states_t(u_int32_t, const char *);
957 typedef int pfsync_state_in_use_t(struct pf_state *);
958 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
959 typedef int pfsync_up_t(void);
961 extern pfsync_state_import_t *pfsync_state_import_ptr;
962 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
963 extern pfsync_update_state_t *pfsync_update_state_ptr;
964 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
965 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
966 extern pfsync_state_in_use_t *pfsync_state_in_use_ptr;
967 extern pfsync_defer_t *pfsync_defer_ptr;
968 extern pfsync_up_t *pfsync_up_ptr;
970 void pfsync_state_export(struct pfsync_state *,
974 typedef int export_pflow_t(struct pf_state *);
976 extern export_pflow_t *export_pflow_ptr;
981 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
982 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
983 struct pf_ruleset *, struct pf_pdesc *);
985 extern pflog_packet_t *pflog_packet_ptr;
988 VNET_DECLARE(int, debug_pfugidhack);
989 #define V_debug_pfugidhack VNET(debug_pfugidhack)
991 #define V_pf_end_threads VNET(pf_end_threads)
994 /* Macros to set/clear/test flags. */
996 #define SET(t, f) ((t) |= (f))
997 #define CLR(t, f) ((t) &= ~(f))
998 #define ISSET(t, f) ((t) & (f))
1002 #define PFSYNC_FLAG_SRCNODE 0x04
1003 #define PFSYNC_FLAG_NATSRCNODE 0x08
1005 /* for copies to/from network byte order */
1006 /* ioctl interface also uses network byte order */
1007 #define pf_state_peer_hton(s,d) do { \
1008 (d)->seqlo = htonl((s)->seqlo); \
1009 (d)->seqhi = htonl((s)->seqhi); \
1010 (d)->seqdiff = htonl((s)->seqdiff); \
1011 (d)->max_win = htons((s)->max_win); \
1012 (d)->mss = htons((s)->mss); \
1013 (d)->state = (s)->state; \
1014 (d)->wscale = (s)->wscale; \
1016 (d)->scrub.pfss_flags = \
1017 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
1018 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1019 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
1020 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1024 #define pf_state_peer_ntoh(s,d) do { \
1025 (d)->seqlo = ntohl((s)->seqlo); \
1026 (d)->seqhi = ntohl((s)->seqhi); \
1027 (d)->seqdiff = ntohl((s)->seqdiff); \
1028 (d)->max_win = ntohs((s)->max_win); \
1029 (d)->mss = ntohs((s)->mss); \
1030 (d)->state = (s)->state; \
1031 (d)->wscale = (s)->wscale; \
1032 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1033 (d)->scrub != NULL) { \
1034 (d)->scrub->pfss_flags = \
1035 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1036 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1037 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1041 #define pf_state_counter_hton(s,d) do { \
1042 d[0] = htonl((s>>32)&0xffffffff); \
1043 d[1] = htonl(s&0xffffffff); \
1046 #define pf_state_counter_from_pfsync(s) \
1047 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1049 #define pf_state_counter_ntoh(s,d) do { \
1055 TAILQ_HEAD(pf_rulequeue, pf_rule);
1061 struct pf_rulequeue queues[2];
1063 struct pf_rulequeue *ptr;
1064 struct pf_rule **ptr_array;
1069 } rules[PF_RULESET_MAX];
1070 struct pf_anchor *anchor;
1076 RB_HEAD(pf_anchor_global, pf_anchor);
1077 RB_HEAD(pf_anchor_node, pf_anchor);
1079 RB_ENTRY(pf_anchor) entry_global;
1080 RB_ENTRY(pf_anchor) entry_node;
1081 struct pf_anchor *parent;
1082 struct pf_anchor_node children;
1083 char name[PF_ANCHOR_NAME_SIZE];
1084 char path[MAXPATHLEN];
1085 struct pf_ruleset ruleset;
1086 int refcnt; /* anchor rules */
1089 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
1090 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
1092 #define PF_RESERVED_ANCHOR "_pf"
1094 #define PFR_TFLAG_PERSIST 0x00000001
1095 #define PFR_TFLAG_CONST 0x00000002
1096 #define PFR_TFLAG_ACTIVE 0x00000004
1097 #define PFR_TFLAG_INACTIVE 0x00000008
1098 #define PFR_TFLAG_REFERENCED 0x00000010
1099 #define PFR_TFLAG_REFDANCHOR 0x00000020
1100 #define PFR_TFLAG_COUNTERS 0x00000040
1101 /* Adjust masks below when adding flags. */
1102 #define PFR_TFLAG_USRMASK 0x00000043
1103 #define PFR_TFLAG_SETMASK 0x0000003C
1104 #define PFR_TFLAG_ALLMASK 0x0000007F
1107 char pfrt_anchor[MAXPATHLEN];
1108 char pfrt_name[PF_TABLE_NAME_SIZE];
1109 u_int32_t pfrt_flags;
1110 u_int8_t pfrt_fback;
1113 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1114 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1115 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1119 struct in_addr _pfra_ip4addr;
1120 struct in6_addr _pfra_ip6addr;
1125 u_int8_t pfra_fback;
1127 #define pfra_ip4addr pfra_u._pfra_ip4addr
1128 #define pfra_ip6addr pfra_u._pfra_ip6addr
1130 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1131 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1132 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1135 struct pfr_addr pfras_a;
1136 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1137 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1141 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1144 struct pfr_table pfrts_t;
1145 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1146 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1147 u_int64_t pfrts_match;
1148 u_int64_t pfrts_nomatch;
1151 int pfrts_refcnt[PFR_REFCNT_MAX];
1153 #define pfrts_name pfrts_t.pfrt_name
1154 #define pfrts_flags pfrts_t.pfrt_flags
1156 #ifndef _SOCKADDR_UNION_DEFINED
1157 #define _SOCKADDR_UNION_DEFINED
1158 union sockaddr_union {
1160 struct sockaddr_in sin;
1161 struct sockaddr_in6 sin6;
1163 #endif /* _SOCKADDR_UNION_DEFINED */
1165 struct pfr_kcounters {
1166 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1167 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1170 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1172 struct radix_node pfrke_node[2];
1173 union sockaddr_union pfrke_sa;
1174 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1177 struct pfr_kcounters *pfrke_counters;
1179 struct pfr_kroute *pfrke_route;
1186 u_int8_t pfrke_mark;
1188 #define pfrke_counters u.pfrke_counters
1189 #define pfrke_route u.pfrke_route
1192 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1193 RB_HEAD(pfr_ktablehead, pfr_ktable);
1195 struct pfr_tstats pfrkt_ts;
1196 RB_ENTRY(pfr_ktable) pfrkt_tree;
1197 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1198 struct radix_node_head *pfrkt_ip4;
1199 struct radix_node_head *pfrkt_ip6;
1200 struct pfr_ktable *pfrkt_shadow;
1201 struct pfr_ktable *pfrkt_root;
1202 struct pf_ruleset *pfrkt_rs;
1206 #define pfrkt_t pfrkt_ts.pfrts_t
1207 #define pfrkt_name pfrkt_t.pfrt_name
1208 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1209 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1210 #define pfrkt_flags pfrkt_t.pfrt_flags
1211 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1212 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1213 #define pfrkt_packets pfrkt_ts.pfrts_packets
1214 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1215 #define pfrkt_match pfrkt_ts.pfrts_match
1216 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1217 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1219 RB_HEAD(pf_state_tree, pf_state_key);
1220 RB_PROTOTYPE(pf_state_tree, pf_state_key, entry, pf_state_compare_key);
1222 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
1223 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key,
1224 entry_ext_gwy, pf_state_compare_ext_gwy);
1226 RB_HEAD(pfi_ifhead, pfi_kif);
1231 VNET_DECLARE(struct pf_state_tree, pf_statetbl);
1232 #define V_pf_statetbl VNET(pf_statetbl)
1235 extern struct pf_state_tree pf_statetbl;
1238 /* keep synced with pfi_kif, used in RB_FIND */
1239 struct pfi_kif_cmp {
1240 char pfik_name[IFNAMSIZ];
1244 char pfik_name[IFNAMSIZ];
1245 RB_ENTRY(pfi_kif) pfik_tree;
1246 u_int64_t pfik_packets[2][2][2];
1247 u_int64_t pfik_bytes[2][2][2];
1248 u_int32_t pfik_tzero;
1250 void *pfik_ah_cookie;
1251 struct ifnet *pfik_ifp;
1252 struct ifg_group *pfik_group;
1255 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1264 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1273 u_int64_t tot_len; /* Make Mickey money */
1279 struct icmp6_hdr *icmp6;
1284 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1287 struct pf_addr *src; /* src address */
1288 struct pf_addr *dst; /* dst address */
1292 struct pf_mtag *pf_mtag;
1295 u_int32_t p_len; /* total length of payload */
1298 u_int16_t *proto_sum;
1299 u_int16_t flags; /* Let SCRUB trigger behavior in
1300 * state code. Easier than tags */
1301 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1302 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1306 u_int8_t dir; /* direction */
1307 u_int8_t sidx; /* key index for source */
1308 u_int8_t didx; /* key index for destination */
1311 /* flags for RDR options */
1312 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1313 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1315 /* Reasons code for passing/dropping a packet */
1316 #define PFRES_MATCH 0 /* Explicit match of a rule */
1317 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1318 #define PFRES_FRAG 2 /* Dropping following fragment */
1319 #define PFRES_SHORT 3 /* Dropping short packet */
1320 #define PFRES_NORM 4 /* Dropping by normalizer */
1321 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1322 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1323 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1324 #define PFRES_IPOPTIONS 8 /* IP option */
1325 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1326 #define PFRES_BADSTATE 10 /* State mismatch */
1327 #define PFRES_STATEINS 11 /* State insertion failure */
1328 #define PFRES_MAXSTATES 12 /* State limit */
1329 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1330 #define PFRES_SYNPROXY 14 /* SYN proxy */
1331 #define PFRES_MAX 15 /* total+1 */
1333 #define PFRES_NAMES { \
1352 /* Counters for other things we want to keep track of */
1353 #define LCNT_STATES 0 /* states */
1354 #define LCNT_SRCSTATES 1 /* max-src-states */
1355 #define LCNT_SRCNODES 2 /* max-src-nodes */
1356 #define LCNT_SRCCONN 3 /* max-src-conn */
1357 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1358 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1359 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1360 #define LCNT_MAX 7 /* total+1 */
1362 #define LCNT_NAMES { \
1363 "max states per rule", \
1367 "max-src-conn-rate", \
1368 "overload table insertion", \
1369 "overload flush states", \
1373 /* UDP state enumeration */
1374 #define PFUDPS_NO_TRAFFIC 0
1375 #define PFUDPS_SINGLE 1
1376 #define PFUDPS_MULTIPLE 2
1378 #define PFUDPS_NSTATES 3 /* number of state levels */
1380 #define PFUDPS_NAMES { \
1387 /* Other protocol state enumeration */
1388 #define PFOTHERS_NO_TRAFFIC 0
1389 #define PFOTHERS_SINGLE 1
1390 #define PFOTHERS_MULTIPLE 2
1392 #define PFOTHERS_NSTATES 3 /* number of state levels */
1394 #define PFOTHERS_NAMES { \
1401 #define FCNT_STATE_SEARCH 0
1402 #define FCNT_STATE_INSERT 1
1403 #define FCNT_STATE_REMOVALS 2
1406 #define SCNT_SRC_NODE_SEARCH 0
1407 #define SCNT_SRC_NODE_INSERT 1
1408 #define SCNT_SRC_NODE_REMOVALS 2
1411 #define ACTION_SET(a, x) \
1418 #define REASON_SET(a, x) \
1422 if (x < PFRES_MAX) \
1423 V_pf_status.counters[x]++; \
1426 #define REASON_SET(a, x) \
1430 if (x < PFRES_MAX) \
1431 pf_status.counters[x]++; \
1436 u_int64_t counters[PFRES_MAX];
1437 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1438 u_int64_t fcounters[FCNT_MAX];
1439 u_int64_t scounters[SCNT_MAX];
1440 u_int64_t pcounters[2][2][3];
1441 u_int64_t bcounters[2][2];
1445 u_int32_t src_nodes;
1449 char ifname[IFNAMSIZ];
1450 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1470 /* real-time service curve */
1471 u_int rtsc_m1; /* slope of the 1st segment in bps */
1472 u_int rtsc_d; /* the x-projection of m1 in msec */
1473 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1474 /* link-sharing service curve */
1478 /* upper-limit service curve */
1486 char ifname[IFNAMSIZ];
1488 void *altq_disc; /* discipline-specific state */
1489 TAILQ_ENTRY(pf_altq) entries;
1491 /* scheduler spec */
1492 u_int8_t scheduler; /* scheduler type */
1493 u_int16_t tbrsize; /* tokenbucket regulator size */
1494 u_int32_t ifbandwidth; /* interface bandwidth */
1497 char qname[PF_QNAME_SIZE]; /* queue name */
1498 char parent[PF_QNAME_SIZE]; /* parent name */
1499 u_int32_t parent_qid; /* parent queue id */
1500 u_int32_t bandwidth; /* queue bandwidth */
1501 u_int8_t priority; /* priority */
1503 u_int8_t local_flags; /* dynamic interface */
1504 #define PFALTQ_FLAG_IF_REMOVED 0x01
1506 u_int16_t qlimit; /* queue size limit */
1507 u_int16_t flags; /* misc flags */
1509 struct cbq_opts cbq_opts;
1510 struct priq_opts priq_opts;
1511 struct hfsc_opts hfsc_opts;
1514 u_int32_t qid; /* return value */
1518 TAILQ_ENTRY(pf_tagname) entries;
1519 char name[PF_TAG_NAME_SIZE];
1526 struct in_addr ipv4;
1527 struct in6_addr ipv6;
1532 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1533 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1534 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1535 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1537 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1538 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1539 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1542 * ioctl parameter structures
1545 struct pfioc_pooladdr {
1553 char anchor[MAXPATHLEN];
1554 struct pf_pooladdr addr;
1560 u_int32_t pool_ticket;
1562 char anchor[MAXPATHLEN];
1563 char anchor_call[MAXPATHLEN];
1564 struct pf_rule rule;
1567 struct pfioc_natlook {
1568 struct pf_addr saddr;
1569 struct pf_addr daddr;
1570 struct pf_addr rsaddr;
1571 struct pf_addr rdaddr;
1581 struct pfioc_state {
1582 struct pfsync_state state;
1585 struct pfioc_src_node_kill {
1586 sa_family_t psnk_af;
1587 struct pf_rule_addr psnk_src;
1588 struct pf_rule_addr psnk_dst;
1592 struct pfioc_state_kill {
1593 struct pf_state_cmp psk_pfcmp;
1596 struct pf_rule_addr psk_src;
1597 struct pf_rule_addr psk_dst;
1598 char psk_ifname[IFNAMSIZ];
1599 char psk_label[PF_RULE_LABEL_SIZE];
1603 struct pfioc_states {
1607 struct pfsync_state *psu_states;
1609 #define ps_buf ps_u.psu_buf
1610 #define ps_states ps_u.psu_states
1613 struct pfioc_src_nodes {
1617 struct pf_src_node *psu_src_nodes;
1619 #define psn_buf psn_u.psu_buf
1620 #define psn_src_nodes psn_u.psu_src_nodes
1624 char ifname[IFNAMSIZ];
1632 struct pfioc_limit {
1641 struct pf_altq altq;
1644 struct pfioc_qstats {
1652 struct pfioc_ruleset {
1654 char path[MAXPATHLEN];
1655 char name[PF_ANCHOR_NAME_SIZE];
1658 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1659 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1660 struct pfioc_trans {
1661 int size; /* number of elements */
1662 int esize; /* size of each element in bytes */
1663 struct pfioc_trans_e {
1665 char anchor[MAXPATHLEN];
1670 #define PFR_FLAG_ATOMIC 0x00000001
1671 #define PFR_FLAG_DUMMY 0x00000002
1672 #define PFR_FLAG_FEEDBACK 0x00000004
1673 #define PFR_FLAG_CLSTATS 0x00000008
1674 #define PFR_FLAG_ADDRSTOO 0x00000010
1675 #define PFR_FLAG_REPLACE 0x00000020
1676 #define PFR_FLAG_ALLRSETS 0x00000040
1677 #define PFR_FLAG_ALLMASK 0x0000007F
1679 #define PFR_FLAG_USERIOCTL 0x10000000
1682 struct pfioc_table {
1683 struct pfr_table pfrio_table;
1692 u_int32_t pfrio_ticket;
1694 #define pfrio_exists pfrio_nadd
1695 #define pfrio_nzero pfrio_nadd
1696 #define pfrio_nmatch pfrio_nadd
1697 #define pfrio_naddr pfrio_size2
1698 #define pfrio_setflag pfrio_size2
1699 #define pfrio_clrflag pfrio_nadd
1701 struct pfioc_iface {
1702 char pfiio_name[IFNAMSIZ];
1715 #define DIOCSTART _IO ('D', 1)
1716 #define DIOCSTOP _IO ('D', 2)
1717 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1718 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1719 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1720 /* XXX cut 8 - 17 */
1721 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1722 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1723 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1724 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1725 #define DIOCCLRSTATUS _IO ('D', 22)
1726 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1727 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1728 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1729 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1730 /* XXX cut 26 - 28 */
1731 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1732 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1733 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1734 #define DIOCCLRRULECTRS _IO ('D', 38)
1735 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1736 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1737 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1738 #define DIOCSTARTALTQ _IO ('D', 42)
1739 #define DIOCSTOPALTQ _IO ('D', 43)
1740 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1741 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1742 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1743 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1744 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1745 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1746 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1747 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1748 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1749 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1750 /* XXX cut 55 - 57 */
1751 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1752 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1753 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1754 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1755 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1756 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1757 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1758 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1759 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1760 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1761 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1762 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1763 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1764 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1765 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1766 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1767 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1768 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1769 #define DIOCOSFPFLUSH _IO('D', 78)
1770 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1771 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1772 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1773 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1774 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1775 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1776 #define DIOCCLRSRCNODES _IO('D', 85)
1777 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1778 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1779 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1780 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1781 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1784 char ifname[IFNAMSIZ];
1787 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1791 RB_HEAD(pf_src_tree, pf_src_node);
1792 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1794 VNET_DECLARE(struct pf_src_tree, tree_src_tracking);
1795 #define V_tree_src_tracking VNET(tree_src_tracking)
1797 extern struct pf_src_tree tree_src_tracking;
1800 RB_HEAD(pf_state_tree_id, pf_state);
1801 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1802 entry_id, pf_state_compare_id);
1804 VNET_DECLARE(struct pf_state_tree_id, tree_id);
1805 #define V_tree_id VNET(tree_id)
1806 VNET_DECLARE(struct pf_state_queue, state_list);
1807 #define V_state_list VNET(state_list)
1809 extern struct pf_state_tree_id tree_id;
1810 extern struct pf_state_queue state_list;
1813 TAILQ_HEAD(pf_poolqueue, pf_pool);
1815 VNET_DECLARE(struct pf_poolqueue, pf_pools[2]);
1816 #define V_pf_pools VNET(pf_pools)
1818 extern struct pf_poolqueue pf_pools[2];
1820 TAILQ_HEAD(pf_altqqueue, pf_altq);
1822 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1823 #define V_pf_altqs VNET(pf_altqs)
1824 VNET_DECLARE(struct pf_palist, pf_pabuf);
1825 #define V_pf_pabuf VNET(pf_pabuf)
1827 extern struct pf_altqqueue pf_altqs[2];
1828 extern struct pf_palist pf_pabuf;
1832 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1833 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1834 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1835 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1836 VNET_DECLARE(int, altqs_inactive_open);
1837 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1838 VNET_DECLARE(u_int32_t, ticket_pabuf);
1839 #define V_ticket_pabuf VNET(ticket_pabuf)
1840 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1841 #define V_pf_altqs_active VNET(pf_altqs_active)
1842 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1843 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1844 VNET_DECLARE(struct pf_poolqueue *, pf_pools_active);
1845 #define V_pf_pools_active VNET(pf_pools_active)
1846 VNET_DECLARE(struct pf_poolqueue *, pf_pools_inactive);
1847 #define V_pf_pools_inactive VNET(pf_pools_inactive)
1849 extern u_int32_t ticket_altqs_active;
1850 extern u_int32_t ticket_altqs_inactive;
1851 extern int altqs_inactive_open;
1852 extern u_int32_t ticket_pabuf;
1853 extern struct pf_altqqueue *pf_altqs_active;
1854 extern struct pf_altqqueue *pf_altqs_inactive;
1855 extern struct pf_poolqueue *pf_pools_active;
1856 extern struct pf_poolqueue *pf_pools_inactive;
1858 extern int pf_tbladdr_setup(struct pf_ruleset *,
1859 struct pf_addr_wrap *);
1860 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1861 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1862 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1865 extern void pf_altq_ifnet_event(struct ifnet *, int);
1867 VNET_DECLARE(uma_zone_t, pf_src_tree_pl);
1868 #define V_pf_src_tree_pl VNET(pf_src_tree_pl)
1869 VNET_DECLARE(uma_zone_t, pf_rule_pl);
1870 #define V_pf_rule_pl VNET(pf_rule_pl)
1871 VNET_DECLARE(uma_zone_t, pf_state_pl);
1872 #define V_pf_state_pl VNET(pf_state_pl)
1873 VNET_DECLARE(uma_zone_t, pf_state_key_pl);
1874 #define V_pf_state_key_pl VNET(pf_state_key_pl)
1875 VNET_DECLARE(uma_zone_t, pf_state_item_pl);
1876 #define V_pf_state_item_pl VNET(pf_state_item_pl)
1877 VNET_DECLARE(uma_zone_t, pf_altq_pl);
1878 #define V_pf_altq_pl VNET(pf_altq_pl)
1879 VNET_DECLARE(uma_zone_t, pf_pooladdr_pl);
1880 #define V_pf_pooladdr_pl VNET(pf_pooladdr_pl)
1881 VNET_DECLARE(uma_zone_t, pfr_ktable_pl);
1882 #define V_pfr_ktable_pl VNET(pfr_ktable_pl)
1883 VNET_DECLARE(uma_zone_t, pfr_kentry_pl);
1884 #define V_pfr_kentry_pl VNET(pfr_kentry_pl)
1885 VNET_DECLARE(uma_zone_t, pf_cache_pl);
1886 #define V_pf_cache_pl VNET(pf_cache_pl)
1887 VNET_DECLARE(uma_zone_t, pf_cent_pl);
1888 #define V_pf_cent_pl VNET(pf_cent_pl)
1889 VNET_DECLARE(uma_zone_t, pf_state_scrub_pl);
1890 #define V_pf_state_scrub_pl VNET(pf_state_scrub_pl)
1891 VNET_DECLARE(uma_zone_t, pfi_addr_pl);
1892 #define V_pfi_addr_pl VNET(pfi_addr_pl)
1894 extern struct pool pf_src_tree_pl, pf_rule_pl;
1895 extern struct pool pf_state_pl, pf_state_key_pl, pf_state_item_pl,
1896 pf_altq_pl, pf_pooladdr_pl;
1897 extern struct pool pf_state_scrub_pl;
1899 extern void pf_purge_thread(void *);
1901 extern int pf_purge_expired_src_nodes(int);
1902 extern int pf_purge_expired_states(u_int32_t , int);
1904 extern void pf_purge_expired_src_nodes(int);
1905 extern void pf_purge_expired_states(u_int32_t);
1907 extern void pf_unlink_state(struct pf_state *);
1908 extern void pf_free_state(struct pf_state *);
1909 extern int pf_state_insert(struct pfi_kif *,
1910 struct pf_state_key *,
1911 struct pf_state_key *,
1913 extern int pf_insert_src_node(struct pf_src_node **,
1914 struct pf_rule *, struct pf_addr *,
1916 void pf_src_tree_remove_state(struct pf_state *);
1917 extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
1918 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1920 extern void pf_print_state(struct pf_state *);
1921 extern void pf_print_flags(u_int8_t);
1922 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1926 VNET_DECLARE(struct ifnet *, sync_ifp);
1927 #define V_sync_ifp VNET(sync_ifp);
1928 VNET_DECLARE(struct pf_rule, pf_default_rule);
1929 #define V_pf_default_rule VNET(pf_default_rule)
1931 extern struct ifnet *sync_ifp;
1932 extern struct pf_rule pf_default_rule;
1934 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1936 void pf_rm_rule(struct pf_rulequeue *,
1939 struct pf_divert *pf_find_divert(struct mbuf *);
1944 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *,
1947 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *);
1953 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *,
1956 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *);
1958 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1959 struct pf_addr *, struct pf_addr *, u_int8_t);
1960 void pf_addr_inc(struct pf_addr *, sa_family_t);
1964 u_int32_t pf_new_isn(struct pf_state *);
1966 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1968 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1969 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1970 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *,
1972 void pf_send_deferred_syn(struct pf_state *);
1973 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1974 struct pf_addr *, sa_family_t);
1975 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1976 struct pf_addr *, sa_family_t);
1977 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1978 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1979 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1980 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1982 void pf_normalize_init(void);
1983 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1985 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1987 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1989 void pf_normalize_tcp_cleanup(struct pf_state *);
1990 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1991 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1992 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1993 u_short *, struct tcphdr *, struct pf_state *,
1994 struct pf_state_peer *, struct pf_state_peer *, int *);
1996 pf_state_expires(const struct pf_state *);
1997 void pf_purge_expired_fragments(void);
1998 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *);
1999 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *);
2001 int pf_socket_lookup(int, struct pf_pdesc *, struct inpcb *);
2003 int pf_socket_lookup(int, struct pf_pdesc *);
2005 struct pf_state_key *pf_alloc_state_key(int);
2006 void pf_pkt_addr_changed(struct mbuf *);
2007 int pf_state_key_attach(struct pf_state_key *, struct pf_state *, int);
2008 void pfr_initialize(void);
2009 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
2010 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
2011 u_int64_t, int, int, int);
2012 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
2013 struct pf_addr **, struct pf_addr **, sa_family_t);
2014 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
2016 pfr_attach_table(struct pf_ruleset *, char *, int);
2017 void pfr_detach_table(struct pfr_ktable *);
2018 int pfr_clr_tables(struct pfr_table *, int *, int);
2019 int pfr_add_tables(struct pfr_table *, int, int *, int);
2020 int pfr_del_tables(struct pfr_table *, int, int *, int);
2021 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
2022 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
2023 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
2024 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
2025 int pfr_clr_addrs(struct pfr_table *, int *, int);
2026 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
2027 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2029 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2031 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2032 int *, int *, int *, int, u_int32_t);
2033 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
2034 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
2035 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
2037 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2039 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
2040 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
2041 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
2042 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
2043 int *, u_int32_t, int);
2046 VNET_DECLARE(struct pfi_kif *, pfi_all);
2047 #define V_pfi_all VNET(pfi_all)
2049 extern struct pfi_kif *pfi_all;
2052 void pfi_initialize(void);
2054 void pfi_cleanup(void);
2056 struct pfi_kif *pfi_kif_get(const char *);
2057 void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
2058 void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
2059 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
2060 void pfi_attach_ifnet(struct ifnet *);
2061 void pfi_detach_ifnet(struct ifnet *);
2062 void pfi_attach_ifgroup(struct ifg_group *);
2063 void pfi_detach_ifgroup(struct ifg_group *);
2064 void pfi_group_change(const char *);
2065 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2067 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2068 void pfi_dynaddr_remove(struct pf_addr_wrap *);
2069 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2070 void pfi_update_status(const char *, struct pf_status *);
2071 int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
2072 int pfi_set_flags(const char *, int);
2073 int pfi_clear_flags(const char *, int);
2076 int pf_match_tag(struct mbuf *, struct pf_rule *, int *,
2079 int pf_match_tag(struct mbuf *, struct pf_rule *, int *);
2081 u_int16_t pf_tagname2tag(char *);
2082 void pf_tag2tagname(u_int16_t, char *);
2083 void pf_tag_ref(u_int16_t);
2084 void pf_tag_unref(u_int16_t);
2086 int pf_tag_packet(struct mbuf *, int, int, struct pf_mtag *);
2088 int pf_tag_packet(struct mbuf *, int, int);
2090 u_int32_t pf_qname2qid(char *);
2091 void pf_qid2qname(u_int32_t, char *);
2092 void pf_qid_unref(u_int32_t);
2095 VNET_DECLARE(struct pf_status, pf_status);
2096 #define V_pf_status VNET(pf_status)
2098 extern struct pf_status pf_status;
2102 VNET_DECLARE(uma_zone_t, pf_frent_pl);
2103 #define V_pf_frent_pl VNET(pf_frent_pl)
2104 VNET_DECLARE(uma_zone_t, pf_frag_pl);
2105 #define V_pf_frag_pl VNET(pf_frag_pl)
2106 VNET_DECLARE(struct sx, pf_consistency_lock);
2107 #define V_pf_consistency_lock VNET(pf_consistency_lock)
2109 extern struct pool pf_frent_pl, pf_frag_pl;
2110 extern struct rwlock pf_consistency_lock;
2113 struct pf_pool_limit {
2118 VNET_DECLARE(struct pf_pool_limit, pf_pool_limits[PF_LIMIT_MAX]);
2119 #define V_pf_pool_limits VNET(pf_pool_limits)
2121 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
2126 LIST_ENTRY(pf_frent) fr_next;
2132 LIST_ENTRY(pf_frcache) fr_next;
2137 struct pf_fragment {
2138 RB_ENTRY(pf_fragment) fr_entry;
2139 TAILQ_ENTRY(pf_fragment) frag_next;
2140 struct in_addr fr_src;
2141 struct in_addr fr_dst;
2142 u_int8_t fr_p; /* protocol of this fragment */
2143 u_int8_t fr_flags; /* status flags */
2144 u_int16_t fr_id; /* fragment id for reassemble */
2145 u_int16_t fr_max; /* fragment data max */
2146 u_int32_t fr_timeout;
2147 #define fr_queue fr_u.fru_queue
2148 #define fr_cache fr_u.fru_cache
2150 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
2151 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
2154 #endif /* (__FreeBSD__) */
2156 #endif /* _KERNEL */
2160 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
2161 #define V_pf_anchors VNET(pf_anchors)
2162 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
2163 #define V_pf_main_anchor VNET(pf_main_anchor)
2164 #define pf_main_ruleset V_pf_main_anchor.ruleset
2167 extern struct pf_anchor_global pf_anchors;
2168 extern struct pf_anchor pf_main_anchor;
2169 #define pf_main_ruleset pf_main_anchor.ruleset
2172 /* these ruleset functions can be linked into userland programs (pfctl) */
2173 int pf_get_ruleset_number(u_int8_t);
2174 void pf_init_ruleset(struct pf_ruleset *);
2175 int pf_anchor_setup(struct pf_rule *,
2176 const struct pf_ruleset *, const char *);
2177 int pf_anchor_copyout(const struct pf_ruleset *,
2178 const struct pf_rule *, struct pfioc_rule *);
2179 void pf_anchor_remove(struct pf_rule *);
2180 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2181 struct pf_anchor *pf_find_anchor(const char *);
2182 struct pf_ruleset *pf_find_ruleset(const char *);
2183 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
2184 void pf_rs_initialize(void);
2188 int pf_anchor_copyout(const struct pf_ruleset *,
2189 const struct pf_rule *, struct pfioc_rule *);
2190 void pf_anchor_remove(struct pf_rule *);
2192 #endif /* _KERNEL */
2195 /* The fingerprint functions can be linked into userland programs (tcpdump) */
2196 int pf_osfp_add(struct pf_osfp_ioctl *);
2198 struct pf_osfp_enlist *
2199 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
2200 const struct tcphdr *);
2201 #endif /* _KERNEL */
2202 struct pf_osfp_enlist *
2203 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *,
2204 const struct tcphdr *);
2205 void pf_osfp_flush(void);
2206 int pf_osfp_get(struct pf_osfp_ioctl *);
2208 int pf_osfp_initialize(void);
2209 void pf_osfp_cleanup(void);
2211 void pf_osfp_initialize(void);
2213 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2214 struct pf_os_fingerprint *
2215 pf_osfp_validate(void);
2218 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
2220 void pf_step_into_anchor(int *, struct pf_ruleset **, int,
2221 struct pf_rule **, struct pf_rule **, int *);
2222 int pf_step_out_of_anchor(int *, struct pf_ruleset **,
2223 int, struct pf_rule **, struct pf_rule **,
2226 int pf_map_addr(u_int8_t, struct pf_rule *,
2227 struct pf_addr *, struct pf_addr *,
2228 struct pf_addr *, struct pf_src_node **);
2229 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
2230 int, int, struct pfi_kif *, struct pf_src_node **,
2231 struct pf_state_key **, struct pf_state_key **,
2232 struct pf_state_key **, struct pf_state_key **,
2233 struct pf_addr *, struct pf_addr *,
2234 u_int16_t, u_int16_t);
2236 int pf_state_key_setup(struct pf_pdesc *, struct pf_rule *,
2237 struct pf_state_key **, struct pf_state_key **,
2238 struct pf_state_key **, struct pf_state_key **,
2239 struct pf_addr *, struct pf_addr *,
2240 u_int16_t, u_int16_t);
2241 #endif /* _KERNEL */
2244 #endif /* _NET_PFVAR_H_ */