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1 /*
2 * Copyright (c) 2007-2012 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 /* $apfw: git commit b6bf13f8321283cd7ee82b1795e86506084b1b95 $ */
30 /* $OpenBSD: pfvar.h,v 1.259 2007/12/02 12:08:04 pascoe Exp $ */
31
32 /*
33 * Copyright (c) 2001 Daniel Hartmeier
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * - Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * - Redistributions in binary form must reproduce the above
43 * copyright notice, this list of conditions and the following
44 * disclaimer in the documentation and/or other materials provided
45 * with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
50 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
51 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
53 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
54 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
57 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
58 * POSSIBILITY OF SUCH DAMAGE.
59 *
60 */
61
62 #ifndef _NET_PFVAR_H_
63 #define _NET_PFVAR_H_
64
65 #ifdef PRIVATE
66 /*
67 * XXX
68 * XXX Private interfaces. Do not include this file; use pfctl(8) instead.
69 * XXX
70 */
71 #if PF || !defined(KERNEL)
72
73 #ifdef __cplusplus
74 extern "C" {
75 #endif
76
77 #include <stdbool.h>
78 #include <sys/param.h>
79 #include <sys/types.h>
80 #include <sys/queue.h>
81 #include <libkern/tree.h>
82
83 #include <net/radix.h>
84 #include <netinet/in.h>
85
86 #ifdef KERNEL
87 #include <kern/kern_types.h>
88 #include <kern/zalloc.h>
89 #include <kern/lock.h>
90
91 #include <machine/endian.h>
92 #include <sys/systm.h>
93
94 #if BYTE_ORDER == BIG_ENDIAN
95 #define htobe64(x) (x)
96 #else /* LITTLE ENDIAN */
97 #define htobe64(x) __DARWIN_OSSwapInt64(x)
98 #endif /* LITTLE_ENDIAN */
99
100 #define be64toh(x) htobe64(x)
101
102 __private_extern__ lck_rw_t *pf_perim_lock;
103 __private_extern__ lck_mtx_t *pf_lock;
104
105 struct pool {
106 struct zone *pool_zone; /* pointer to backend zone */
107 const char *pool_name; /* name of pool */
108 unsigned int pool_count; /* # of outstanding elements */
109 unsigned int pool_hiwat; /* high watermark */
110 unsigned int pool_limit; /* hard limit */
111 unsigned int pool_fails; /* # of failed allocs due to limit */
112 };
113
114 #define PR_NOWAIT FALSE
115 #define PR_WAITOK TRUE
116
117 __private_extern__ void pool_init(struct pool *, size_t, unsigned int,
118 unsigned int, int, const char *, void *);
119 __private_extern__ void pool_destroy(struct pool *);
120 __private_extern__ void pool_sethiwat(struct pool *, int);
121 __private_extern__ void pool_sethardlimit(struct pool *, int,
122 const char *, int);
123 __private_extern__ void *pool_get(struct pool *, int);
124 __private_extern__ void pool_put(struct pool *, void *);
125 __private_extern__ u_int64_t pf_time_second(void);
126 __private_extern__ u_int64_t pf_calendar_time_second(void);
127 #endif /* KERNEL */
128
129 union sockaddr_union {
130 struct sockaddr sa;
131 struct sockaddr_in sin;
132 struct sockaddr_in6 sin6;
133 };
134
135 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
136 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
137
138 #define PF_MD5_DIGEST_LENGTH 16
139 #ifdef MD5_DIGEST_LENGTH
140 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
141 #error
142 #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */
143 #endif /* MD5_DIGEST_LENGTH */
144
145 #ifdef KERNEL
146 struct ip;
147 struct ip6_hdr;
148 struct tcphdr;
149 struct pf_grev1_hdr;
150 struct pf_esp_hdr;
151 #endif /* KERNEL */
152
153 #define PF_GRE_PPTP_VARIANT 0x01
154
155 enum { PF_INOUT, PF_IN, PF_OUT };
156 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
157 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP,
158 PF_DUMMYNET, PF_NODUMMYNET };
159 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
160 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET,
161 PF_RULESET_MAX };
162 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
163 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
164 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
165 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
166 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
167 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
168 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
169
170 /*
171 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
172 * PFTM_MAX, special cases afterwards. See pf_state_expires().
173 */
174 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
175 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
176 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
177 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
178 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING,
179 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING,
180 PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
181 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
182 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
183 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
184 PFTM_UNTIL_PACKET };
185
186 /* PFTM default values */
187 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
188 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */
189 #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */
190 #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */
191 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
192 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
193 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
194 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
195 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
196 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
197 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
198 #define PFTM_GREv1_FIRST_PACKET_VAL 120
199 #define PFTM_GREv1_INITIATING_VAL 30
200 #define PFTM_GREv1_ESTABLISHED_VAL 1800
201 #define PFTM_ESP_FIRST_PACKET_VAL 120
202 #define PFTM_ESP_INITIATING_VAL 30
203 #define PFTM_ESP_ESTABLISHED_VAL 900
204 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
205 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
206 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
207 #define PFTM_FRAG_VAL 30 /* Fragment expire */
208 #define PFTM_INTERVAL_VAL 10 /* Expire interval */
209 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */
210 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
211
212 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
213 enum { PF_LIMIT_STATES,
214 PF_LIMIT_APP_STATES,
215 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
216 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
217 #define PF_POOL_IDMASK 0x0f
218 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
219 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
220 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
221 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED,
222 PF_ADDR_RANGE };
223 #define PF_POOL_TYPEMASK 0x0f
224 #define PF_POOL_STICKYADDR 0x20
225 #define PF_WSCALE_FLAG 0x80
226 #define PF_WSCALE_MASK 0x0f
227
228 #define PF_LOG 0x01
229 #define PF_LOG_ALL 0x02
230 #define PF_LOG_SOCKET_LOOKUP 0x04
231
232 struct pf_addr {
233 union {
234 struct in_addr v4;
235 struct in6_addr v6;
236 u_int8_t addr8[16];
237 u_int16_t addr16[8];
238 u_int32_t addr32[4];
239 } pfa; /* 128-bit address */
240 #define v4 pfa.v4
241 #define v6 pfa.v6
242 #define addr8 pfa.addr8
243 #define addr16 pfa.addr16
244 #define addr32 pfa.addr32
245 };
246
247 #define PF_TABLE_NAME_SIZE 32
248
249 #define PFI_AFLAG_NETWORK 0x01
250 #define PFI_AFLAG_BROADCAST 0x02
251 #define PFI_AFLAG_PEER 0x04
252 #define PFI_AFLAG_MODEMASK 0x07
253 #define PFI_AFLAG_NOALIAS 0x08
254
255 #ifndef RTLABEL_LEN
256 #define RTLABEL_LEN 32
257 #endif
258
259 struct pf_addr_wrap {
260 union {
261 struct {
262 struct pf_addr addr;
263 struct pf_addr mask;
264 } a;
265 char ifname[IFNAMSIZ];
266 char tblname[PF_TABLE_NAME_SIZE];
267 char rtlabelname[RTLABEL_LEN];
268 u_int32_t rtlabel;
269 } v;
270 union {
271 #ifdef KERNEL
272 struct pfi_dynaddr *dyn __attribute__((aligned(8)));
273 struct pfr_ktable *tbl __attribute__((aligned(8)));
274 #else /* !KERNEL */
275 void *dyn __attribute__((aligned(8)));
276 void *tbl __attribute__((aligned(8)));
277 #endif /* !KERNEL */
278 int dyncnt __attribute__((aligned(8)));
279 int tblcnt __attribute__((aligned(8)));
280 } p __attribute__((aligned(8)));
281 u_int8_t type; /* PF_ADDR_* */
282 u_int8_t iflags; /* PFI_AFLAG_* */
283 };
284
285 struct pf_port_range {
286 u_int16_t port[2];
287 u_int8_t op;
288 };
289
290 union pf_rule_xport {
291 struct pf_port_range range;
292 u_int16_t call_id;
293 u_int32_t spi;
294 };
295
296 #ifdef KERNEL
297 struct pfi_dynaddr {
298 TAILQ_ENTRY(pfi_dynaddr) entry;
299 struct pf_addr pfid_addr4;
300 struct pf_addr pfid_mask4;
301 struct pf_addr pfid_addr6;
302 struct pf_addr pfid_mask6;
303 struct pfr_ktable *pfid_kt;
304 struct pfi_kif *pfid_kif;
305 void *pfid_hook_cookie;
306 int pfid_net; /* mask or 128 */
307 int pfid_acnt4; /* address count IPv4 */
308 int pfid_acnt6; /* address count IPv6 */
309 sa_family_t pfid_af; /* rule af */
310 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
311 };
312
313 /*
314 * Address manipulation macros
315 */
316
317 #if INET
318 #if !INET6
319 #define PF_INET_ONLY
320 #endif /* ! INET6 */
321 #endif /* INET */
322
323 #if INET6
324 #if !INET
325 #define PF_INET6_ONLY
326 #endif /* ! INET */
327 #endif /* INET6 */
328
329 #if INET
330 #if INET6
331 #define PF_INET_INET6
332 #endif /* INET6 */
333 #endif /* INET */
334
335 #else /* !KERNEL */
336
337 #define PF_INET_INET6
338
339 #endif /* !KERNEL */
340
341 /* Both IPv4 and IPv6 */
342 #ifdef PF_INET_INET6
343
344 #define PF_AEQ(a, b, c) \
345 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
346 ((a)->addr32[3] == (b)->addr32[3] && \
347 (a)->addr32[2] == (b)->addr32[2] && \
348 (a)->addr32[1] == (b)->addr32[1] && \
349 (a)->addr32[0] == (b)->addr32[0])) \
350
351 #define PF_ANEQ(a, b, c) \
352 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
353 ((a)->addr32[3] != (b)->addr32[3] || \
354 (a)->addr32[2] != (b)->addr32[2] || \
355 (a)->addr32[1] != (b)->addr32[1] || \
356 (a)->addr32[0] != (b)->addr32[0])) \
357
358 #define PF_ALEQ(a, b, c) \
359 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \
360 ((a)->addr32[3] <= (b)->addr32[3] && \
361 (a)->addr32[2] <= (b)->addr32[2] && \
362 (a)->addr32[1] <= (b)->addr32[1] && \
363 (a)->addr32[0] <= (b)->addr32[0])) \
364
365 #define PF_AZERO(a, c) \
366 ((c == AF_INET && !(a)->addr32[0]) || \
367 (!(a)->addr32[0] && !(a)->addr32[1] && \
368 !(a)->addr32[2] && !(a)->addr32[3])) \
369
370 #define PF_MATCHA(n, a, m, b, f) \
371 pf_match_addr(n, a, m, b, f)
372
373 #define PF_ACPY(a, b, f) \
374 pf_addrcpy(a, b, f)
375
376 #define PF_AINC(a, f) \
377 pf_addr_inc(a, f)
378
379 #define PF_POOLMASK(a, b, c, d, f) \
380 pf_poolmask(a, b, c, d, f)
381
382 #else
383
384 /* Just IPv6 */
385
386 #ifdef PF_INET6_ONLY
387
388 #define PF_AEQ(a, b, c) \
389 ((a)->addr32[3] == (b)->addr32[3] && \
390 (a)->addr32[2] == (b)->addr32[2] && \
391 (a)->addr32[1] == (b)->addr32[1] && \
392 (a)->addr32[0] == (b)->addr32[0]) \
393
394 #define PF_ANEQ(a, b, c) \
395 ((a)->addr32[3] != (b)->addr32[3] || \
396 (a)->addr32[2] != (b)->addr32[2] || \
397 (a)->addr32[1] != (b)->addr32[1] || \
398 (a)->addr32[0] != (b)->addr32[0]) \
399
400 #define PF_ALEQ(a, b, c) \
401 ((a)->addr32[3] <= (b)->addr32[3] && \
402 (a)->addr32[2] <= (b)->addr32[2] && \
403 (a)->addr32[1] <= (b)->addr32[1] && \
404 (a)->addr32[0] <= (b)->addr32[0]) \
405
406 #define PF_AZERO(a, c) \
407 (!(a)->addr32[0] && \
408 !(a)->addr32[1] && \
409 !(a)->addr32[2] && \
410 !(a)->addr32[3]) \
411
412 #define PF_MATCHA(n, a, m, b, f) \
413 pf_match_addr(n, a, m, b, f)
414
415 #define PF_ACPY(a, b, f) \
416 pf_addrcpy(a, b, f)
417
418 #define PF_AINC(a, f) \
419 pf_addr_inc(a, f)
420
421 #define PF_POOLMASK(a, b, c, d, f) \
422 pf_poolmask(a, b, c, d, f)
423
424 #else
425
426 /* Just IPv4 */
427 #ifdef PF_INET_ONLY
428
429 #define PF_AEQ(a, b, c) \
430 ((a)->addr32[0] == (b)->addr32[0])
431
432 #define PF_ANEQ(a, b, c) \
433 ((a)->addr32[0] != (b)->addr32[0])
434
435 #define PF_ALEQ(a, b, c) \
436 ((a)->addr32[0] <= (b)->addr32[0])
437
438 #define PF_AZERO(a, c) \
439 (!(a)->addr32[0])
440
441 #define PF_MATCHA(n, a, m, b, f) \
442 pf_match_addr(n, a, m, b, f)
443
444 #define PF_ACPY(a, b, f) \
445 (a)->v4.s_addr = (b)->v4.s_addr
446
447 #define PF_AINC(a, f) \
448 do { \
449 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
450 } while (0)
451
452 #define PF_POOLMASK(a, b, c, d, f) \
453 do { \
454 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
455 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \
456 } while (0)
457
458 #endif /* PF_INET_ONLY */
459 #endif /* PF_INET6_ONLY */
460 #endif /* PF_INET_INET6 */
461
462 #ifdef KERNEL
463 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
464 ( \
465 (((aw)->type == PF_ADDR_NOROUTE && \
466 pf_routable((x), (af), NULL)) || \
467 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
468 pf_routable((x), (af), (ifp))) || \
469 ((aw)->type == PF_ADDR_RTLABEL && \
470 !pf_rtlabel_match((x), (af), (aw))) || \
471 ((aw)->type == PF_ADDR_TABLE && \
472 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
473 ((aw)->type == PF_ADDR_DYNIFTL && \
474 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
475 ((aw)->type == PF_ADDR_RANGE && \
476 !pf_match_addr_range(&(aw)->v.a.addr, \
477 &(aw)->v.a.mask, (x), (af))) || \
478 ((aw)->type == PF_ADDR_ADDRMASK && \
479 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
480 !PF_MATCHA(0, &(aw)->v.a.addr, \
481 &(aw)->v.a.mask, (x), (af))))) != \
482 (neg) \
483 )
484 #endif /* KERNEL */
485
486 struct pf_rule_uid {
487 uid_t uid[2];
488 u_int8_t op;
489 u_int8_t _pad[3];
490 };
491
492 struct pf_rule_gid {
493 uid_t gid[2];
494 u_int8_t op;
495 u_int8_t _pad[3];
496 };
497
498 struct pf_rule_addr {
499 struct pf_addr_wrap addr;
500 union pf_rule_xport xport;
501 u_int8_t neg;
502 };
503
504 struct pf_pooladdr {
505 struct pf_addr_wrap addr;
506 TAILQ_ENTRY(pf_pooladdr) entries;
507 #if !defined(__LP64__)
508 u_int32_t _pad[2];
509 #endif /* !__LP64__ */
510 char ifname[IFNAMSIZ];
511 #ifdef KERNEL
512 struct pfi_kif *kif __attribute__((aligned(8)));
513 #else /* !KERNEL */
514 void *kif __attribute__((aligned(8)));
515 #endif /* !KERNEL */
516 };
517
518 TAILQ_HEAD(pf_palist, pf_pooladdr);
519
520 struct pf_poolhashkey {
521 union {
522 u_int8_t key8[16];
523 u_int16_t key16[8];
524 u_int32_t key32[4];
525 } pfk; /* 128-bit hash key */
526 #define key8 pfk.key8
527 #define key16 pfk.key16
528 #define key32 pfk.key32
529 };
530
531 struct pf_pool {
532 struct pf_palist list;
533 #if !defined(__LP64__)
534 u_int32_t _pad[2];
535 #endif /* !__LP64__ */
536 #ifdef KERNEL
537 struct pf_pooladdr *cur __attribute__((aligned(8)));
538 #else /* !KERNEL */
539 void *cur __attribute__((aligned(8)));
540 #endif /* !KERNEL */
541 struct pf_poolhashkey key __attribute__((aligned(8)));
542 struct pf_addr counter;
543 int tblidx;
544 u_int16_t proxy_port[2];
545 u_int8_t port_op;
546 u_int8_t opts;
547 };
548
549
550 /* A packed Operating System description for fingerprinting */
551 typedef u_int32_t pf_osfp_t;
552 #define PF_OSFP_ANY ((pf_osfp_t)0)
553 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
554 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
555
556 struct pf_osfp_entry {
557 SLIST_ENTRY(pf_osfp_entry) fp_entry;
558 #if !defined(__LP64__)
559 u_int32_t _pad;
560 #endif /* !__LP64__ */
561 pf_osfp_t fp_os;
562 int fp_enflags;
563 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
564 #define PF_OSFP_GENERIC 0x002 /* generic signature */
565 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
566 #define PF_OSFP_LEN 32
567 char fp_class_nm[PF_OSFP_LEN];
568 char fp_version_nm[PF_OSFP_LEN];
569 char fp_subtype_nm[PF_OSFP_LEN];
570 };
571 #define PF_OSFP_ENTRY_EQ(a, b) \
572 ((a)->fp_os == (b)->fp_os && \
573 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
574 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
575 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
576
577 /* handle pf_osfp_t packing */
578 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
579 #define _FP_UNUSED_BITS 1
580 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
581 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
582 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
583 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
584 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
585 ((1 << _FP_CLASS_BITS) - 1); \
586 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
587 ((1 << _FP_VERSION_BITS) - 1);\
588 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
589 } while (0)
590 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
591 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
592 + _FP_SUBTYPE_BITS); \
593 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
594 _FP_SUBTYPE_BITS; \
595 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
596 } while (0)
597
598 /* the fingerprint of an OSes TCP SYN packet */
599 typedef u_int64_t pf_tcpopts_t;
600 struct pf_os_fingerprint {
601 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
602 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
603 u_int16_t fp_wsize; /* TCP window size */
604 u_int16_t fp_psize; /* ip->ip_len */
605 u_int16_t fp_mss; /* TCP MSS */
606 u_int16_t fp_flags;
607 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
608 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
609 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
610 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
611 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
612 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
613 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
614 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
615 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
616 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
617 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
618 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
619 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
620 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
621 #define PF_OSFP_INET6 0x4000 /* IPv6 */
622 u_int8_t fp_optcnt; /* TCP option count */
623 u_int8_t fp_wscale; /* TCP window scaling */
624 u_int8_t fp_ttl; /* IPv4 TTL */
625 #define PF_OSFP_MAXTTL_OFFSET 40
626 /* TCP options packing */
627 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
628 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
629 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
630 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
631 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
632 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
633 #define PF_OSFP_MAX_OPTS \
634 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
635 / PF_OSFP_TCPOPT_BITS
636
637 SLIST_ENTRY(pf_os_fingerprint) fp_next;
638 };
639
640 struct pf_osfp_ioctl {
641 struct pf_osfp_entry fp_os;
642 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
643 u_int16_t fp_wsize; /* TCP window size */
644 u_int16_t fp_psize; /* ip->ip_len */
645 u_int16_t fp_mss; /* TCP MSS */
646 u_int16_t fp_flags;
647 u_int8_t fp_optcnt; /* TCP option count */
648 u_int8_t fp_wscale; /* TCP window scaling */
649 u_int8_t fp_ttl; /* IPv4 TTL */
650
651 int fp_getnum; /* DIOCOSFPGET number */
652 };
653
654
655 union pf_rule_ptr {
656 struct pf_rule *ptr __attribute__((aligned(8)));
657 u_int32_t nr __attribute__((aligned(8)));
658 } __attribute__((aligned(8)));
659
660 #define PF_ANCHOR_NAME_SIZE 64
661
662 struct pf_rule {
663 struct pf_rule_addr src;
664 struct pf_rule_addr dst;
665 #define PF_SKIP_IFP 0
666 #define PF_SKIP_DIR 1
667 #define PF_SKIP_AF 2
668 #define PF_SKIP_PROTO 3
669 #define PF_SKIP_SRC_ADDR 4
670 #define PF_SKIP_SRC_PORT 5
671 #define PF_SKIP_DST_ADDR 6
672 #define PF_SKIP_DST_PORT 7
673 #define PF_SKIP_COUNT 8
674 union pf_rule_ptr skip[PF_SKIP_COUNT];
675 #define PF_RULE_LABEL_SIZE 64
676 char label[PF_RULE_LABEL_SIZE];
677 #define PF_QNAME_SIZE 64
678 char ifname[IFNAMSIZ];
679 char qname[PF_QNAME_SIZE];
680 char pqname[PF_QNAME_SIZE];
681 #define PF_TAG_NAME_SIZE 64
682 char tagname[PF_TAG_NAME_SIZE];
683 char match_tagname[PF_TAG_NAME_SIZE];
684
685 char overload_tblname[PF_TABLE_NAME_SIZE];
686
687 TAILQ_ENTRY(pf_rule) entries;
688 #if !defined(__LP64__)
689 u_int32_t _pad[2];
690 #endif /* !__LP64__ */
691 struct pf_pool rpool;
692
693 u_int64_t evaluations;
694 u_int64_t packets[2];
695 u_int64_t bytes[2];
696
697 u_int32_t ticket;
698 #define PF_OWNER_NAME_SIZE 64
699 char owner[PF_OWNER_NAME_SIZE];
700 u_int32_t priority;
701
702 #ifdef KERNEL
703 struct pfi_kif *kif __attribute__((aligned(8)));
704 #else /* !KERNEL */
705 void *kif __attribute__((aligned(8)));
706 #endif /* !KERNEL */
707 struct pf_anchor *anchor __attribute__((aligned(8)));
708 #ifdef KERNEL
709 struct pfr_ktable *overload_tbl __attribute__((aligned(8)));
710 #else /* !KERNEL */
711 void *overload_tbl __attribute__((aligned(8)));
712 #endif /* !KERNEL */
713
714 pf_osfp_t os_fingerprint __attribute__((aligned(8)));
715
716 unsigned int rtableid;
717 u_int32_t timeout[PFTM_MAX];
718 u_int32_t states;
719 u_int32_t max_states;
720 u_int32_t src_nodes;
721 u_int32_t max_src_nodes;
722 u_int32_t max_src_states;
723 u_int32_t max_src_conn;
724 struct {
725 u_int32_t limit;
726 u_int32_t seconds;
727 } max_src_conn_rate;
728 u_int32_t qid;
729 u_int32_t pqid;
730 u_int32_t rt_listid;
731 u_int32_t nr;
732 u_int32_t prob;
733 uid_t cuid;
734 pid_t cpid;
735
736 u_int16_t return_icmp;
737 u_int16_t return_icmp6;
738 u_int16_t max_mss;
739 u_int16_t tag;
740 u_int16_t match_tag;
741
742 struct pf_rule_uid uid;
743 struct pf_rule_gid gid;
744
745 u_int32_t rule_flag;
746 u_int8_t action;
747 u_int8_t direction;
748 u_int8_t log;
749 u_int8_t logif;
750 u_int8_t quick;
751 u_int8_t ifnot;
752 u_int8_t match_tag_not;
753 u_int8_t natpass;
754
755 #define PF_STATE_NORMAL 0x1
756 #define PF_STATE_MODULATE 0x2
757 #define PF_STATE_SYNPROXY 0x3
758 u_int8_t keep_state;
759 sa_family_t af;
760 u_int8_t proto;
761 u_int8_t type;
762 u_int8_t code;
763 u_int8_t flags;
764 u_int8_t flagset;
765 u_int8_t min_ttl;
766 u_int8_t allow_opts;
767 u_int8_t rt;
768 u_int8_t return_ttl;
769
770 /* service class categories */
771 #define SCIDX_MASK 0x0f
772 #define SC_BE 0x10
773 #define SC_BK_SYS 0x11
774 #define SC_BK 0x12
775 #define SC_RD 0x13
776 #define SC_OAM 0x14
777 #define SC_AV 0x15
778 #define SC_RV 0x16
779 #define SC_VI 0x17
780 #define SC_VO 0x18
781 #define SC_CTL 0x19
782
783 /* diffserve code points */
784 #define DSCP_MASK 0xfc
785 #define DSCP_CUMASK 0x03
786 #define DSCP_EF 0xb8
787 #define DSCP_AF11 0x28
788 #define DSCP_AF12 0x30
789 #define DSCP_AF13 0x38
790 #define DSCP_AF21 0x48
791 #define DSCP_AF22 0x50
792 #define DSCP_AF23 0x58
793 #define DSCP_AF31 0x68
794 #define DSCP_AF32 0x70
795 #define DSCP_AF33 0x78
796 #define DSCP_AF41 0x88
797 #define DSCP_AF42 0x90
798 #define DSCP_AF43 0x98
799 #define AF_CLASSMASK 0xe0
800 #define AF_DROPPRECMASK 0x18
801 u_int8_t tos;
802 u_int8_t anchor_relative;
803 u_int8_t anchor_wildcard;
804
805 #define PF_FLUSH 0x01
806 #define PF_FLUSH_GLOBAL 0x02
807 u_int8_t flush;
808
809 u_int8_t proto_variant;
810 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */
811 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */
812 u_int32_t dnpipe;
813 u_int32_t dntype;
814 };
815
816 /* pf device identifiers */
817 #define PFDEV_PF 0
818 #define PFDEV_PFM 1
819 #define PFDEV_MAX 2
820
821 /* rule flags */
822 #define PFRULE_DROP 0x0000
823 #define PFRULE_RETURNRST 0x0001
824 #define PFRULE_FRAGMENT 0x0002
825 #define PFRULE_RETURNICMP 0x0004
826 #define PFRULE_RETURN 0x0008
827 #define PFRULE_NOSYNC 0x0010
828 #define PFRULE_SRCTRACK 0x0020 /* track source states */
829 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
830
831 /* scrub flags */
832 #define PFRULE_NODF 0x0100
833 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
834 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
835 #define PFRULE_RANDOMID 0x0800
836 #define PFRULE_REASSEMBLE_TCP 0x1000
837
838 /* rule flags for TOS/DSCP/service class differentiation */
839 #define PFRULE_TOS 0x2000
840 #define PFRULE_DSCP 0x4000
841 #define PFRULE_SC 0x8000
842
843 /* rule flags again */
844 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
845 #define PFRULE_PFM 0x00020000 /* created by pfm device */
846
847 #define PFSTATE_HIWAT 10000 /* default state table size */
848 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
849 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
850
851 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */
852
853 enum pf_extmap {
854 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */
855 PF_EXTMAP_AD, /* Address-dependent mapping */
856 PF_EXTMAP_EI /* Endpoint-independent mapping */
857 };
858
859 enum pf_extfilter {
860 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */
861 PF_EXTFILTER_AD, /* Address-dependent filtering */
862 PF_EXTFILTER_EI /* Endpoint-independent filtering */
863 };
864
865 struct pf_threshold {
866 u_int32_t limit;
867 #define PF_THRESHOLD_MULT 1000
868 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
869 u_int32_t seconds;
870 u_int32_t count;
871 u_int32_t last;
872 };
873
874 struct pf_src_node {
875 RB_ENTRY(pf_src_node) entry;
876 struct pf_addr addr;
877 struct pf_addr raddr;
878 union pf_rule_ptr rule;
879 #ifdef KERNEL
880 struct pfi_kif *kif;
881 #else /* !KERNEL */
882 void *kif;
883 #endif /* !KERNEL */
884 u_int64_t bytes[2];
885 u_int64_t packets[2];
886 u_int32_t states;
887 u_int32_t conn;
888 struct pf_threshold conn_rate;
889 u_int64_t creation;
890 u_int64_t expire;
891 sa_family_t af;
892 u_int8_t ruletype;
893 };
894
895 #define PFSNODE_HIWAT 10000 /* default source node table size */
896
897 #ifdef KERNEL
898 struct pf_state_scrub {
899 struct timeval pfss_last; /* time received last packet */
900 u_int32_t pfss_tsecr; /* last echoed timestamp */
901 u_int32_t pfss_tsval; /* largest timestamp */
902 u_int32_t pfss_tsval0; /* original timestamp */
903 u_int16_t pfss_flags;
904 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
905 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
906 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
907 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
908 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
909 u_int8_t pfss_ttl; /* stashed TTL */
910 u_int8_t pad;
911 u_int32_t pfss_ts_mod; /* timestamp modulation */
912 };
913 #endif /* KERNEL */
914
915 union pf_state_xport {
916 u_int16_t port;
917 u_int16_t call_id;
918 u_int32_t spi;
919 };
920
921 struct pf_state_host {
922 struct pf_addr addr;
923 union pf_state_xport xport;
924 };
925
926 #ifdef KERNEL
927 struct pf_state_peer {
928 u_int32_t seqlo; /* Max sequence number sent */
929 u_int32_t seqhi; /* Max the other end ACKd + win */
930 u_int32_t seqdiff; /* Sequence number modulator */
931 u_int16_t max_win; /* largest window (pre scaling) */
932 u_int8_t state; /* active state level */
933 u_int8_t wscale; /* window scaling factor */
934 u_int16_t mss; /* Maximum segment size option */
935 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
936 struct pf_state_scrub *scrub; /* state is scrubbed */
937 u_int8_t pad[3];
938 };
939
940 TAILQ_HEAD(pf_state_queue, pf_state);
941
942 struct pf_state;
943 struct pf_pdesc;
944 struct pf_app_state;
945
946 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *,
947 struct pfi_kif *);
948
949 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *);
950
951 struct pf_pptp_state {
952 struct pf_state *grev1_state;
953 };
954
955 struct pf_grev1_state {
956 struct pf_state *pptp_state;
957 };
958
959 struct pf_ike_state {
960 u_int64_t cookie;
961 };
962
963 struct pf_app_state {
964 pf_app_handler handler;
965 pf_app_compare compare_lan_ext;
966 pf_app_compare compare_ext_gwy;
967 union {
968 struct pf_pptp_state pptp;
969 struct pf_grev1_state grev1;
970 struct pf_ike_state ike;
971 } u;
972 };
973
974 /* keep synced with struct pf_state, used in RB_FIND */
975 struct pf_state_key_cmp {
976 struct pf_state_host lan;
977 struct pf_state_host gwy;
978 struct pf_state_host ext;
979 sa_family_t af;
980 u_int8_t proto;
981 u_int8_t direction;
982 u_int8_t proto_variant;
983 struct pf_app_state *app_state;
984 };
985
986 TAILQ_HEAD(pf_statelist, pf_state);
987
988 struct pf_state_key {
989 struct pf_state_host lan;
990 struct pf_state_host gwy;
991 struct pf_state_host ext;
992 sa_family_t af;
993 u_int8_t proto;
994 u_int8_t direction;
995 u_int8_t proto_variant;
996 struct pf_app_state *app_state;
997 u_int32_t flowhash;
998
999 RB_ENTRY(pf_state_key) entry_lan_ext;
1000 RB_ENTRY(pf_state_key) entry_ext_gwy;
1001 struct pf_statelist states;
1002 u_int32_t refcnt;
1003 };
1004
1005
1006 /* keep synced with struct pf_state, used in RB_FIND */
1007 struct pf_state_cmp {
1008 u_int64_t id;
1009 u_int32_t creatorid;
1010 u_int32_t pad;
1011 };
1012
1013 /* flowhash key (12-bytes multiple for performance) */
1014 struct pf_flowhash_key {
1015 struct pf_state_host ap1; /* address+port blob 1 */
1016 struct pf_state_host ap2; /* address+port blob 2 */
1017 u_int32_t af;
1018 u_int32_t proto;
1019 };
1020 #endif /* KERNEL */
1021
1022 struct hook_desc;
1023 TAILQ_HEAD(hook_desc_head, hook_desc);
1024
1025 #ifdef KERNEL
1026 struct pf_state {
1027 u_int64_t id;
1028 u_int32_t creatorid;
1029 u_int32_t pad;
1030
1031 TAILQ_ENTRY(pf_state) entry_list;
1032 TAILQ_ENTRY(pf_state) next;
1033 RB_ENTRY(pf_state) entry_id;
1034 struct pf_state_peer src;
1035 struct pf_state_peer dst;
1036 union pf_rule_ptr rule;
1037 union pf_rule_ptr anchor;
1038 union pf_rule_ptr nat_rule;
1039 struct pf_addr rt_addr;
1040 struct hook_desc_head unlink_hooks;
1041 struct pf_state_key *state_key;
1042 struct pfi_kif *kif;
1043 struct pfi_kif *rt_kif;
1044 struct pf_src_node *src_node;
1045 struct pf_src_node *nat_src_node;
1046 u_int64_t packets[2];
1047 u_int64_t bytes[2];
1048 u_int64_t creation;
1049 u_int64_t expire;
1050 u_int64_t pfsync_time;
1051 u_int16_t tag;
1052 u_int8_t log;
1053 u_int8_t allow_opts;
1054 u_int8_t timeout;
1055 u_int8_t sync_flags;
1056 };
1057 #endif /* KERNEL */
1058
1059 #define PFSTATE_NOSYNC 0x01
1060 #define PFSTATE_FROMSYNC 0x02
1061 #define PFSTATE_STALE 0x04
1062
1063 #define __packed __attribute__((__packed__))
1064
1065 /*
1066 * Unified state structures for pulling states out of the kernel
1067 * used by pfsync(4) and the pf(4) ioctl.
1068 */
1069 struct pfsync_state_scrub {
1070 u_int16_t pfss_flags;
1071 u_int8_t pfss_ttl; /* stashed TTL */
1072 #define PFSYNC_SCRUB_FLAG_VALID 0x01
1073 u_int8_t scrub_flag;
1074 u_int32_t pfss_ts_mod; /* timestamp modulation */
1075 } __packed;
1076
1077 struct pfsync_state_host {
1078 struct pf_addr addr;
1079 union pf_state_xport xport;
1080 u_int16_t pad[2];
1081 } __packed;
1082
1083 struct pfsync_state_peer {
1084 struct pfsync_state_scrub scrub; /* state is scrubbed */
1085 u_int32_t seqlo; /* Max sequence number sent */
1086 u_int32_t seqhi; /* Max the other end ACKd + win */
1087 u_int32_t seqdiff; /* Sequence number modulator */
1088 u_int16_t max_win; /* largest window (pre scaling) */
1089 u_int16_t mss; /* Maximum segment size option */
1090 u_int8_t state; /* active state level */
1091 u_int8_t wscale; /* window scaling factor */
1092 u_int8_t pad[6];
1093 } __packed;
1094
1095 struct pfsync_state {
1096 u_int32_t id[2];
1097 char ifname[IFNAMSIZ];
1098 struct pfsync_state_host lan;
1099 struct pfsync_state_host gwy;
1100 struct pfsync_state_host ext;
1101 struct pfsync_state_peer src;
1102 struct pfsync_state_peer dst;
1103 struct pf_addr rt_addr;
1104 struct hook_desc_head unlink_hooks;
1105 #if !defined(__LP64__)
1106 u_int32_t _pad[2];
1107 #endif /* !__LP64__ */
1108 u_int32_t rule;
1109 u_int32_t anchor;
1110 u_int32_t nat_rule;
1111 u_int64_t creation;
1112 u_int64_t expire;
1113 u_int32_t packets[2][2];
1114 u_int32_t bytes[2][2];
1115 u_int32_t creatorid;
1116 u_int16_t tag;
1117 sa_family_t af;
1118 u_int8_t proto;
1119 u_int8_t direction;
1120 u_int8_t log;
1121 u_int8_t allow_opts;
1122 u_int8_t timeout;
1123 u_int8_t sync_flags;
1124 u_int8_t updates;
1125 u_int8_t proto_variant;
1126 u_int8_t __pad;
1127 u_int32_t flowhash;
1128 } __packed;
1129
1130 #define PFSYNC_FLAG_COMPRESS 0x01
1131 #define PFSYNC_FLAG_STALE 0x02
1132 #define PFSYNC_FLAG_SRCNODE 0x04
1133 #define PFSYNC_FLAG_NATSRCNODE 0x08
1134
1135 #ifdef KERNEL
1136 /* for copies to/from userland via pf_ioctl() */
1137 #define pf_state_peer_to_pfsync(s, d) do { \
1138 (d)->seqlo = (s)->seqlo; \
1139 (d)->seqhi = (s)->seqhi; \
1140 (d)->seqdiff = (s)->seqdiff; \
1141 (d)->max_win = (s)->max_win; \
1142 (d)->mss = (s)->mss; \
1143 (d)->state = (s)->state; \
1144 (d)->wscale = (s)->wscale; \
1145 if ((s)->scrub) { \
1146 (d)->scrub.pfss_flags = \
1147 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \
1148 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1149 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \
1150 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1151 } \
1152 } while (0)
1153
1154 #define pf_state_peer_from_pfsync(s, d) do { \
1155 (d)->seqlo = (s)->seqlo; \
1156 (d)->seqhi = (s)->seqhi; \
1157 (d)->seqdiff = (s)->seqdiff; \
1158 (d)->max_win = (s)->max_win; \
1159 (d)->mss = ntohs((s)->mss); \
1160 (d)->state = (s)->state; \
1161 (d)->wscale = (s)->wscale; \
1162 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1163 (d)->scrub != NULL) { \
1164 (d)->scrub->pfss_flags = \
1165 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1166 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1167 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \
1168 } \
1169 } while (0)
1170 #endif /* KERNEL */
1171
1172 #define pf_state_counter_to_pfsync(s, d) do { \
1173 d[0] = (s>>32)&0xffffffff; \
1174 d[1] = s&0xffffffff; \
1175 } while (0)
1176
1177 #define pf_state_counter_from_pfsync(s) \
1178 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1179
1180
1181
1182 TAILQ_HEAD(pf_rulequeue, pf_rule);
1183
1184 struct pf_anchor;
1185
1186 struct pf_ruleset {
1187 struct {
1188 struct pf_rulequeue queues[2];
1189 struct {
1190 struct pf_rulequeue *ptr;
1191 struct pf_rule **ptr_array;
1192 u_int32_t rcount;
1193 u_int32_t ticket;
1194 int open;
1195 } active, inactive;
1196 } rules[PF_RULESET_MAX];
1197 struct pf_anchor *anchor;
1198 u_int32_t tticket;
1199 int tables;
1200 int topen;
1201 };
1202
1203 RB_HEAD(pf_anchor_global, pf_anchor);
1204 RB_HEAD(pf_anchor_node, pf_anchor);
1205 struct pf_anchor {
1206 RB_ENTRY(pf_anchor) entry_global;
1207 RB_ENTRY(pf_anchor) entry_node;
1208 struct pf_anchor *parent;
1209 struct pf_anchor_node children;
1210 char name[PF_ANCHOR_NAME_SIZE];
1211 char path[MAXPATHLEN];
1212 struct pf_ruleset ruleset;
1213 int refcnt; /* anchor rules */
1214 int match;
1215 char owner[PF_OWNER_NAME_SIZE];
1216 };
1217 #ifdef KERNEL
1218 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global,
1219 pf_anchor_compare);
1220 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node,
1221 pf_anchor_compare);
1222 #else /* !KERNEL */
1223 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
1224 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
1225 #endif /* !KERNEL */
1226
1227 #define PF_RESERVED_ANCHOR "_pf"
1228
1229 #define PFR_TFLAG_PERSIST 0x00000001
1230 #define PFR_TFLAG_CONST 0x00000002
1231 #define PFR_TFLAG_ACTIVE 0x00000004
1232 #define PFR_TFLAG_INACTIVE 0x00000008
1233 #define PFR_TFLAG_REFERENCED 0x00000010
1234 #define PFR_TFLAG_REFDANCHOR 0x00000020
1235 #define PFR_TFLAG_USRMASK 0x00000003
1236 #define PFR_TFLAG_SETMASK 0x0000003C
1237 #define PFR_TFLAG_ALLMASK 0x0000003F
1238
1239 struct pfr_table {
1240 char pfrt_anchor[MAXPATHLEN];
1241 char pfrt_name[PF_TABLE_NAME_SIZE];
1242 u_int32_t pfrt_flags;
1243 u_int8_t pfrt_fback;
1244 };
1245
1246 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1247 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1248 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
1249
1250 struct pfr_addr {
1251 union {
1252 struct in_addr _pfra_ip4addr;
1253 struct in6_addr _pfra_ip6addr;
1254 } pfra_u;
1255 u_int8_t pfra_af;
1256 u_int8_t pfra_net;
1257 u_int8_t pfra_not;
1258 u_int8_t pfra_fback;
1259 };
1260 #define pfra_ip4addr pfra_u._pfra_ip4addr
1261 #define pfra_ip6addr pfra_u._pfra_ip6addr
1262
1263 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1264 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1265 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1266
1267 struct pfr_astats {
1268 struct pfr_addr pfras_a;
1269 #if !defined(__LP64__)
1270 u_int32_t _pad;
1271 #endif /* !__LP64__ */
1272 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1273 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1274 u_int64_t pfras_tzero;
1275 };
1276
1277 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1278
1279 struct pfr_tstats {
1280 struct pfr_table pfrts_t;
1281 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1282 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1283 u_int64_t pfrts_match;
1284 u_int64_t pfrts_nomatch;
1285 u_int64_t pfrts_tzero;
1286 int pfrts_cnt;
1287 int pfrts_refcnt[PFR_REFCNT_MAX];
1288 #if !defined(__LP64__)
1289 u_int32_t _pad;
1290 #endif /* !__LP64__ */
1291 };
1292 #define pfrts_name pfrts_t.pfrt_name
1293 #define pfrts_flags pfrts_t.pfrt_flags
1294
1295 #ifdef KERNEL
1296 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1297 struct pfr_kentry {
1298 struct radix_node pfrke_node[2];
1299 union sockaddr_union pfrke_sa;
1300 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1301 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1302 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1303 u_int64_t pfrke_tzero;
1304 u_int8_t pfrke_af;
1305 u_int8_t pfrke_net;
1306 u_int8_t pfrke_not;
1307 u_int8_t pfrke_mark;
1308 u_int8_t pfrke_intrpool;
1309 };
1310
1311 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1312 RB_HEAD(pfr_ktablehead, pfr_ktable);
1313 struct pfr_ktable {
1314 struct pfr_tstats pfrkt_ts;
1315 RB_ENTRY(pfr_ktable) pfrkt_tree;
1316 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1317 struct radix_node_head *pfrkt_ip4;
1318 struct radix_node_head *pfrkt_ip6;
1319 struct pfr_ktable *pfrkt_shadow;
1320 struct pfr_ktable *pfrkt_root;
1321 struct pf_ruleset *pfrkt_rs;
1322 u_int64_t pfrkt_larg;
1323 u_int32_t pfrkt_nflags;
1324 };
1325 #define pfrkt_t pfrkt_ts.pfrts_t
1326 #define pfrkt_name pfrkt_t.pfrt_name
1327 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1328 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1329 #define pfrkt_flags pfrkt_t.pfrt_flags
1330 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1331 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1332 #define pfrkt_packets pfrkt_ts.pfrts_packets
1333 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1334 #define pfrkt_match pfrkt_ts.pfrts_match
1335 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1336 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1337
1338 RB_HEAD(pf_state_tree_lan_ext, pf_state_key);
1339 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key,
1340 entry_lan_ext, pf_state_compare_lan_ext);
1341
1342 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
1343 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key,
1344 entry_ext_gwy, pf_state_compare_ext_gwy);
1345
1346 RB_HEAD(pfi_ifhead, pfi_kif);
1347
1348 /* state tables */
1349 __private_extern__ struct pf_state_tree_lan_ext pf_statetbl_lan_ext;
1350 __private_extern__ struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy;
1351
1352 /* keep synced with pfi_kif, used in RB_FIND */
1353 struct pfi_kif_cmp {
1354 char pfik_name[IFNAMSIZ];
1355 };
1356
1357 struct pfi_kif {
1358 char pfik_name[IFNAMSIZ];
1359 RB_ENTRY(pfi_kif) pfik_tree;
1360 u_int64_t pfik_packets[2][2][2];
1361 u_int64_t pfik_bytes[2][2][2];
1362 u_int64_t pfik_tzero;
1363 int pfik_flags;
1364 void *pfik_ah_cookie;
1365 struct ifnet *pfik_ifp;
1366 int pfik_states;
1367 int pfik_rules;
1368 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1369 };
1370
1371 enum pfi_kif_refs {
1372 PFI_KIF_REF_NONE,
1373 PFI_KIF_REF_STATE,
1374 PFI_KIF_REF_RULE
1375 };
1376
1377 struct pfi_uif {
1378 #else /* !KERNEL */
1379 struct pfi_kif {
1380 #endif /* !KERNEL */
1381 char pfik_name[IFNAMSIZ];
1382 u_int64_t pfik_packets[2][2][2];
1383 u_int64_t pfik_bytes[2][2][2];
1384 u_int64_t pfik_tzero;
1385 int pfik_flags;
1386 int pfik_states;
1387 int pfik_rules;
1388 #if !defined(__LP64__)
1389 u_int32_t _pad;
1390 #endif /* !__LP64__ */
1391 };
1392
1393 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1394
1395 #ifdef KERNEL
1396 struct pf_pdesc {
1397 struct {
1398 int done;
1399 uid_t uid;
1400 gid_t gid;
1401 pid_t pid;
1402 } lookup;
1403 u_int64_t tot_len; /* Make Mickey money */
1404 union {
1405 struct tcphdr *tcp;
1406 struct udphdr *udp;
1407 struct icmp *icmp;
1408 #if INET6
1409 struct icmp6_hdr *icmp6;
1410 #endif /* INET6 */
1411 struct pf_grev1_hdr *grev1;
1412 struct pf_esp_hdr *esp;
1413 void *any;
1414 } hdr;
1415 struct pf_addr baddr; /* address before translation */
1416 struct pf_addr naddr; /* address after translation */
1417 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1418 struct pf_addr *src;
1419 struct pf_addr *dst;
1420 struct ether_header
1421 *eh;
1422 struct mbuf *mp;
1423 int lmw; /* lazy writable offset */
1424 struct pf_mtag *pf_mtag;
1425 u_int16_t *ip_sum;
1426 u_int32_t p_len; /* total length of payload */
1427 u_int16_t flags; /* Let SCRUB trigger behavior in */
1428 /* state code. Easier than tags */
1429 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1430 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1431 #define PFDESC_FLOW_ADV 0x0004 /* sender can use flow advisory */
1432 #define PFDESC_IP_FRAG 0x0008 /* This is a fragment */
1433 sa_family_t af;
1434 u_int8_t proto;
1435 u_int8_t tos;
1436 u_int8_t proto_variant;
1437 mbuf_svc_class_t sc;
1438 u_int32_t flowhash; /* flow hash to identify the sender */
1439 };
1440 #endif /* KERNEL */
1441
1442 /* flags for RDR options */
1443 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1444 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1445
1446 /* Reasons code for passing/dropping a packet */
1447 #define PFRES_MATCH 0 /* Explicit match of a rule */
1448 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1449 #define PFRES_FRAG 2 /* Dropping following fragment */
1450 #define PFRES_SHORT 3 /* Dropping short packet */
1451 #define PFRES_NORM 4 /* Dropping by normalizer */
1452 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1453 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1454 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1455 #define PFRES_IPOPTIONS 8 /* IP option */
1456 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1457 #define PFRES_BADSTATE 10 /* State mismatch */
1458 #define PFRES_STATEINS 11 /* State insertion failure */
1459 #define PFRES_MAXSTATES 12 /* State limit */
1460 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1461 #define PFRES_SYNPROXY 14 /* SYN proxy */
1462 #define PFRES_DUMMYNET 15 /* Dummynet */
1463 #define PFRES_MAX 16 /* total+1 */
1464
1465 #define PFRES_NAMES { \
1466 "match", \
1467 "bad-offset", \
1468 "fragment", \
1469 "short", \
1470 "normalize", \
1471 "memory", \
1472 "bad-timestamp", \
1473 "congestion", \
1474 "ip-option", \
1475 "proto-cksum", \
1476 "state-mismatch", \
1477 "state-insert", \
1478 "state-limit", \
1479 "src-limit", \
1480 "synproxy", \
1481 "dummynet", \
1482 NULL \
1483 }
1484
1485 /* Counters for other things we want to keep track of */
1486 #define LCNT_STATES 0 /* states */
1487 #define LCNT_SRCSTATES 1 /* max-src-states */
1488 #define LCNT_SRCNODES 2 /* max-src-nodes */
1489 #define LCNT_SRCCONN 3 /* max-src-conn */
1490 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1491 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1492 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1493 #define LCNT_MAX 7 /* total+1 */
1494
1495 #define LCNT_NAMES { \
1496 "max states per rule", \
1497 "max-src-states", \
1498 "max-src-nodes", \
1499 "max-src-conn", \
1500 "max-src-conn-rate", \
1501 "overload table insertion", \
1502 "overload flush states", \
1503 NULL \
1504 }
1505
1506 /* UDP state enumeration */
1507 #define PFUDPS_NO_TRAFFIC 0
1508 #define PFUDPS_SINGLE 1
1509 #define PFUDPS_MULTIPLE 2
1510
1511 #define PFUDPS_NSTATES 3 /* number of state levels */
1512
1513 #define PFUDPS_NAMES { \
1514 "NO_TRAFFIC", \
1515 "SINGLE", \
1516 "MULTIPLE", \
1517 NULL \
1518 }
1519
1520 /* GREv1 protocol state enumeration */
1521 #define PFGRE1S_NO_TRAFFIC 0
1522 #define PFGRE1S_INITIATING 1
1523 #define PFGRE1S_ESTABLISHED 2
1524
1525 #define PFGRE1S_NSTATES 3 /* number of state levels */
1526
1527 #define PFGRE1S_NAMES { \
1528 "NO_TRAFFIC", \
1529 "INITIATING", \
1530 "ESTABLISHED", \
1531 NULL \
1532 }
1533
1534 #define PFESPS_NO_TRAFFIC 0
1535 #define PFESPS_INITIATING 1
1536 #define PFESPS_ESTABLISHED 2
1537
1538 #define PFESPS_NSTATES 3 /* number of state levels */
1539
1540 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL }
1541
1542 /* Other protocol state enumeration */
1543 #define PFOTHERS_NO_TRAFFIC 0
1544 #define PFOTHERS_SINGLE 1
1545 #define PFOTHERS_MULTIPLE 2
1546
1547 #define PFOTHERS_NSTATES 3 /* number of state levels */
1548
1549 #define PFOTHERS_NAMES { \
1550 "NO_TRAFFIC", \
1551 "SINGLE", \
1552 "MULTIPLE", \
1553 NULL \
1554 }
1555
1556 #define FCNT_STATE_SEARCH 0
1557 #define FCNT_STATE_INSERT 1
1558 #define FCNT_STATE_REMOVALS 2
1559 #define FCNT_MAX 3
1560
1561 #define SCNT_SRC_NODE_SEARCH 0
1562 #define SCNT_SRC_NODE_INSERT 1
1563 #define SCNT_SRC_NODE_REMOVALS 2
1564 #define SCNT_MAX 3
1565
1566 #ifdef KERNEL
1567 #define ACTION_SET(a, x) \
1568 do { \
1569 if ((a) != NULL) \
1570 *(a) = (x); \
1571 } while (0)
1572
1573 #define REASON_SET(a, x) \
1574 do { \
1575 if ((a) != NULL) \
1576 *(a) = (x); \
1577 if (x < PFRES_MAX) \
1578 pf_status.counters[x]++; \
1579 } while (0)
1580 #endif /* KERNEL */
1581
1582 struct pf_status {
1583 u_int64_t counters[PFRES_MAX];
1584 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1585 u_int64_t fcounters[FCNT_MAX];
1586 u_int64_t scounters[SCNT_MAX];
1587 u_int64_t pcounters[2][2][3];
1588 u_int64_t bcounters[2][2];
1589 u_int64_t stateid;
1590 u_int32_t running;
1591 u_int32_t states;
1592 u_int32_t src_nodes;
1593 u_int64_t since __attribute__((aligned(8)));
1594 u_int32_t debug;
1595 u_int32_t hostid;
1596 char ifname[IFNAMSIZ];
1597 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1598 };
1599
1600 struct cbq_opts {
1601 u_int32_t minburst;
1602 u_int32_t maxburst;
1603 u_int32_t pktsize;
1604 u_int32_t maxpktsize;
1605 u_int32_t ns_per_byte;
1606 u_int32_t maxidle;
1607 int32_t minidle;
1608 u_int32_t offtime;
1609 u_int32_t flags;
1610 };
1611
1612 struct priq_opts {
1613 u_int32_t flags;
1614 };
1615
1616 struct qfq_opts {
1617 u_int32_t flags;
1618 u_int32_t lmax;
1619 };
1620
1621 struct hfsc_opts {
1622 /* real-time service curve */
1623 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */
1624 u_int64_t rtsc_d; /* the x-projection of m1 in msec */
1625 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */
1626 u_int32_t rtsc_fl; /* service curve flags */
1627 #if !defined(__LP64__)
1628 u_int32_t _pad;
1629 #endif /* !__LP64__ */
1630 /* link-sharing service curve */
1631 u_int64_t lssc_m1;
1632 u_int64_t lssc_d;
1633 u_int64_t lssc_m2;
1634 u_int32_t lssc_fl;
1635 #if !defined(__LP64__)
1636 u_int32_t __pad;
1637 #endif /* !__LP64__ */
1638 /* upper-limit service curve */
1639 u_int64_t ulsc_m1;
1640 u_int64_t ulsc_d;
1641 u_int64_t ulsc_m2;
1642 u_int32_t ulsc_fl;
1643 u_int32_t flags; /* scheduler flags */
1644 };
1645
1646 struct fairq_opts {
1647 u_int32_t nbuckets; /* hash buckets */
1648 u_int32_t flags;
1649 u_int64_t hogs_m1; /* hog detection bandwidth */
1650
1651 /* link-sharing service curve */
1652 u_int64_t lssc_m1;
1653 u_int64_t lssc_d;
1654 u_int64_t lssc_m2;
1655 };
1656
1657 /* bandwidth types */
1658 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */
1659 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */
1660
1661 /* ALTQ rule flags */
1662 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */
1663
1664 /* queue rule flags */
1665 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */
1666
1667 struct pf_altq {
1668 char ifname[IFNAMSIZ];
1669
1670 /* discipline-specific state */
1671 void *altq_disc __attribute__((aligned(8)));
1672 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8)));
1673 #if !defined(__LP64__)
1674 u_int32_t _pad[2];
1675 #endif /* !__LP64__ */
1676
1677 u_int32_t aflags; /* ALTQ rule flags */
1678 u_int32_t bwtype; /* bandwidth type */
1679
1680 /* scheduler spec */
1681 u_int32_t scheduler; /* scheduler type */
1682 u_int32_t tbrsize; /* tokenbucket regulator size */
1683 u_int64_t ifbandwidth; /* interface bandwidth */
1684
1685 /* queue spec */
1686 char qname[PF_QNAME_SIZE]; /* queue name */
1687 char parent[PF_QNAME_SIZE]; /* parent name */
1688 u_int32_t parent_qid; /* parent queue id */
1689 u_int32_t qrflags; /* queue rule flags */
1690 union {
1691 u_int32_t priority; /* priority */
1692 u_int32_t weight; /* weight */
1693 };
1694 u_int32_t qlimit; /* queue size limit */
1695 u_int32_t flags; /* misc flags */
1696 #if !defined(__LP64__)
1697 u_int32_t __pad;
1698 #endif /* !__LP64__ */
1699 u_int64_t bandwidth; /* queue bandwidth */
1700 union {
1701 struct cbq_opts cbq_opts;
1702 struct priq_opts priq_opts;
1703 struct hfsc_opts hfsc_opts;
1704 struct fairq_opts fairq_opts;
1705 struct qfq_opts qfq_opts;
1706 } pq_u;
1707
1708 u_int32_t qid; /* return value */
1709 };
1710
1711 struct pf_tagname {
1712 TAILQ_ENTRY(pf_tagname) entries;
1713 char name[PF_TAG_NAME_SIZE];
1714 u_int16_t tag;
1715 int ref;
1716 };
1717
1718 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1719 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1720 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1721 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1722
1723 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1724 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1725 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1726
1727 /*
1728 * ioctl parameter structures
1729 */
1730
1731 struct pfioc_pooladdr {
1732 u_int32_t action;
1733 u_int32_t ticket;
1734 u_int32_t nr;
1735 u_int32_t r_num;
1736 u_int8_t r_action;
1737 u_int8_t r_last;
1738 u_int8_t af;
1739 char anchor[MAXPATHLEN];
1740 struct pf_pooladdr addr;
1741 };
1742
1743 struct pfioc_rule {
1744 u_int32_t action;
1745 u_int32_t ticket;
1746 u_int32_t pool_ticket;
1747 u_int32_t nr;
1748 char anchor[MAXPATHLEN];
1749 char anchor_call[MAXPATHLEN];
1750 struct pf_rule rule;
1751 };
1752
1753 struct pfioc_natlook {
1754 struct pf_addr saddr;
1755 struct pf_addr daddr;
1756 struct pf_addr rsaddr;
1757 struct pf_addr rdaddr;
1758 union pf_state_xport sxport;
1759 union pf_state_xport dxport;
1760 union pf_state_xport rsxport;
1761 union pf_state_xport rdxport;
1762 sa_family_t af;
1763 u_int8_t proto;
1764 u_int8_t proto_variant;
1765 u_int8_t direction;
1766 };
1767
1768 struct pfioc_state {
1769 struct pfsync_state state;
1770 };
1771
1772 struct pfioc_src_node_kill {
1773 /* XXX returns the number of src nodes killed in psnk_af */
1774 sa_family_t psnk_af;
1775 struct pf_rule_addr psnk_src;
1776 struct pf_rule_addr psnk_dst;
1777 };
1778
1779 struct pfioc_state_addr_kill {
1780 struct pf_addr_wrap addr;
1781 u_int8_t reserved_[3];
1782 u_int8_t neg;
1783 union pf_rule_xport xport;
1784 };
1785
1786 struct pfioc_state_kill {
1787 /* XXX returns the number of states killed in psk_af */
1788 sa_family_t psk_af;
1789 u_int8_t psk_proto;
1790 u_int8_t psk_proto_variant;
1791 u_int8_t _pad;
1792 struct pfioc_state_addr_kill psk_src;
1793 struct pfioc_state_addr_kill psk_dst;
1794 char psk_ifname[IFNAMSIZ];
1795 };
1796
1797 struct pfioc_states {
1798 int ps_len;
1799 union {
1800 caddr_t psu_buf;
1801 struct pfsync_state *psu_states;
1802 } ps_u __attribute__((aligned(8)));
1803 #define ps_buf ps_u.psu_buf
1804 #define ps_states ps_u.psu_states
1805 };
1806
1807 #ifdef KERNEL
1808 struct pfioc_states_32 {
1809 int ps_len;
1810 union {
1811 user32_addr_t psu_buf;
1812 user32_addr_t psu_states;
1813 } ps_u __attribute__((aligned(8)));
1814 };
1815
1816 struct pfioc_states_64 {
1817 int ps_len;
1818 union {
1819 user64_addr_t psu_buf;
1820 user64_addr_t psu_states;
1821 } ps_u __attribute__((aligned(8)));
1822 };
1823 #endif /* KERNEL */
1824
1825 #define PFTOK_PROCNAME_LEN 64
1826 #pragma pack(1)
1827 struct pfioc_token {
1828 u_int64_t token_value;
1829 u_int64_t timestamp;
1830 pid_t pid;
1831 char proc_name[PFTOK_PROCNAME_LEN];
1832 };
1833 #pragma pack()
1834
1835 struct pfioc_kernel_token {
1836 SLIST_ENTRY(pfioc_kernel_token) next;
1837 struct pfioc_token token;
1838 };
1839
1840 struct pfioc_remove_token {
1841 u_int64_t token_value;
1842 u_int64_t refcount;
1843 };
1844
1845 struct pfioc_tokens {
1846 int size;
1847 union {
1848 caddr_t pgtu_buf;
1849 struct pfioc_token *pgtu_tokens;
1850 } pgt_u __attribute__((aligned(8)));
1851 #define pgt_buf pgt_u.pgtu_buf
1852 #define pgt_tokens pgt_u.pgtu_tokens
1853 };
1854
1855 #ifdef KERNEL
1856 struct pfioc_tokens_32 {
1857 int size;
1858 union {
1859 user32_addr_t pgtu_buf;
1860 user32_addr_t pgtu_tokens;
1861 } pgt_u __attribute__((aligned(8)));
1862 };
1863
1864 struct pfioc_tokens_64 {
1865 int size;
1866 union {
1867 user64_addr_t pgtu_buf;
1868 user64_addr_t pgtu_tokens;
1869 } pgt_u __attribute__((aligned(8)));
1870 };
1871 #endif /* KERNEL */
1872
1873
1874 struct pfioc_src_nodes {
1875 int psn_len;
1876 union {
1877 caddr_t psu_buf;
1878 struct pf_src_node *psu_src_nodes;
1879 } psn_u __attribute__((aligned(8)));
1880 #define psn_buf psn_u.psu_buf
1881 #define psn_src_nodes psn_u.psu_src_nodes
1882 };
1883
1884 #ifdef KERNEL
1885 struct pfioc_src_nodes_32 {
1886 int psn_len;
1887 union {
1888 user32_addr_t psu_buf;
1889 user32_addr_t psu_src_nodes;
1890 } psn_u __attribute__((aligned(8)));
1891 };
1892
1893 struct pfioc_src_nodes_64 {
1894 int psn_len;
1895 union {
1896 user64_addr_t psu_buf;
1897 user64_addr_t psu_src_nodes;
1898 } psn_u __attribute__((aligned(8)));
1899 };
1900 #endif /* KERNEL */
1901
1902 struct pfioc_if {
1903 char ifname[IFNAMSIZ];
1904 };
1905
1906 struct pfioc_tm {
1907 int timeout;
1908 int seconds;
1909 };
1910
1911 struct pfioc_limit {
1912 int index;
1913 unsigned limit;
1914 };
1915
1916 struct pfioc_altq {
1917 u_int32_t action;
1918 u_int32_t ticket;
1919 u_int32_t nr;
1920 struct pf_altq altq __attribute__((aligned(8)));
1921 };
1922
1923 struct pfioc_qstats {
1924 u_int32_t ticket;
1925 u_int32_t nr;
1926 void *buf __attribute__((aligned(8)));
1927 int nbytes __attribute__((aligned(8)));
1928 u_int8_t scheduler;
1929 };
1930
1931 struct pfioc_ruleset {
1932 u_int32_t nr;
1933 char path[MAXPATHLEN];
1934 char name[PF_ANCHOR_NAME_SIZE];
1935 };
1936
1937 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1938 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1939 struct pfioc_trans {
1940 int size; /* number of elements */
1941 int esize; /* size of each element in bytes */
1942 struct pfioc_trans_e {
1943 int rs_num;
1944 char anchor[MAXPATHLEN];
1945 u_int32_t ticket;
1946 } *array __attribute__((aligned(8)));
1947 };
1948
1949 #ifdef KERNEL
1950 struct pfioc_trans_32 {
1951 int size; /* number of elements */
1952 int esize; /* size of each element in bytes */
1953 user32_addr_t array __attribute__((aligned(8)));
1954 };
1955
1956 struct pfioc_trans_64 {
1957 int size; /* number of elements */
1958 int esize; /* size of each element in bytes */
1959 user64_addr_t array __attribute__((aligned(8)));
1960 };
1961 #endif /* KERNEL */
1962
1963
1964 #define PFR_FLAG_ATOMIC 0x00000001
1965 #define PFR_FLAG_DUMMY 0x00000002
1966 #define PFR_FLAG_FEEDBACK 0x00000004
1967 #define PFR_FLAG_CLSTATS 0x00000008
1968 #define PFR_FLAG_ADDRSTOO 0x00000010
1969 #define PFR_FLAG_REPLACE 0x00000020
1970 #define PFR_FLAG_ALLRSETS 0x00000040
1971 #define PFR_FLAG_ALLMASK 0x0000007F
1972 #ifdef KERNEL
1973 #define PFR_FLAG_USERIOCTL 0x10000000
1974 #endif /* KERNEL */
1975
1976 struct pfioc_table {
1977 struct pfr_table pfrio_table;
1978 void *pfrio_buffer __attribute__((aligned(8)));
1979 int pfrio_esize __attribute__((aligned(8)));
1980 int pfrio_size;
1981 int pfrio_size2;
1982 int pfrio_nadd;
1983 int pfrio_ndel;
1984 int pfrio_nchange;
1985 int pfrio_flags;
1986 u_int32_t pfrio_ticket;
1987 };
1988 #define pfrio_exists pfrio_nadd
1989 #define pfrio_nzero pfrio_nadd
1990 #define pfrio_nmatch pfrio_nadd
1991 #define pfrio_naddr pfrio_size2
1992 #define pfrio_setflag pfrio_size2
1993 #define pfrio_clrflag pfrio_nadd
1994
1995 #ifdef KERNEL
1996 struct pfioc_table_32 {
1997 struct pfr_table pfrio_table;
1998 user32_addr_t pfrio_buffer __attribute__((aligned(8)));
1999 int pfrio_esize __attribute__((aligned(8)));
2000 int pfrio_size;
2001 int pfrio_size2;
2002 int pfrio_nadd;
2003 int pfrio_ndel;
2004 int pfrio_nchange;
2005 int pfrio_flags;
2006 u_int32_t pfrio_ticket;
2007 };
2008
2009 struct pfioc_table_64 {
2010 struct pfr_table pfrio_table;
2011 user64_addr_t pfrio_buffer __attribute__((aligned(8)));
2012 int pfrio_esize __attribute__((aligned(8)));
2013 int pfrio_size;
2014 int pfrio_size2;
2015 int pfrio_nadd;
2016 int pfrio_ndel;
2017 int pfrio_nchange;
2018 int pfrio_flags;
2019 u_int32_t pfrio_ticket;
2020 };
2021 #endif /* KERNEL */
2022
2023 struct pfioc_iface {
2024 char pfiio_name[IFNAMSIZ];
2025 void *pfiio_buffer __attribute__((aligned(8)));
2026 int pfiio_esize __attribute__((aligned(8)));
2027 int pfiio_size;
2028 int pfiio_nzero;
2029 int pfiio_flags;
2030 };
2031
2032 #ifdef KERNEL
2033 struct pfioc_iface_32 {
2034 char pfiio_name[IFNAMSIZ];
2035 user32_addr_t pfiio_buffer __attribute__((aligned(8)));
2036 int pfiio_esize __attribute__((aligned(8)));
2037 int pfiio_size;
2038 int pfiio_nzero;
2039 int pfiio_flags;
2040 };
2041
2042 struct pfioc_iface_64 {
2043 char pfiio_name[IFNAMSIZ];
2044 user64_addr_t pfiio_buffer __attribute__((aligned(8)));
2045 int pfiio_esize __attribute__((aligned(8)));
2046 int pfiio_size;
2047 int pfiio_nzero;
2048 int pfiio_flags;
2049 };
2050 #endif /* KERNEL */
2051
2052 struct pf_ifspeed {
2053 char ifname[IFNAMSIZ];
2054 u_int64_t baudrate;
2055 };
2056
2057 /*
2058 * ioctl operations
2059 */
2060
2061 #define DIOCSTART _IO ('D', 1)
2062 #define DIOCSTOP _IO ('D', 2)
2063 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
2064 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens)
2065 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
2066 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
2067 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t)
2068 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token)
2069 /* XXX cut 10 - 17 */
2070 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
2071 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
2072 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
2073 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
2074 #define DIOCCLRSTATUS _IO ('D', 22)
2075 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
2076 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
2077 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
2078 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
2079 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule)
2080 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule)
2081 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
2082 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
2083 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
2084 #define DIOCCLRRULECTRS _IO ('D', 38)
2085 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
2086 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
2087 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
2088 #define DIOCSTARTALTQ _IO ('D', 42)
2089 #define DIOCSTOPALTQ _IO ('D', 43)
2090 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
2091 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
2092 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
2093 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
2094 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
2095 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
2096 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
2097 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
2098 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
2099 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
2100 /* XXX cut 55 - 57 */
2101 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
2102 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
2103 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
2104 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
2105 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
2106 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
2107 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
2108 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
2109 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
2110 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
2111 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
2112 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
2113 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
2114 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
2115 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
2116 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
2117 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
2118 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
2119 #define DIOCOSFPFLUSH _IO('D', 78)
2120 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
2121 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
2122 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
2123 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
2124 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
2125 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
2126 #define DIOCCLRSRCNODES _IO('D', 85)
2127 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
2128 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
2129 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
2130 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
2131 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
2132 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
2133
2134 #ifdef KERNEL
2135 RB_HEAD(pf_src_tree, pf_src_node);
2136 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry,
2137 pf_src_compare);
2138 __private_extern__ struct pf_src_tree tree_src_tracking;
2139
2140 RB_HEAD(pf_state_tree_id, pf_state);
2141 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state,
2142 entry_id, pf_state_compare_id);
2143 __private_extern__ struct pf_state_tree_id tree_id;
2144 __private_extern__ struct pf_state_queue state_list;
2145
2146 TAILQ_HEAD(pf_poolqueue, pf_pool);
2147 __private_extern__ struct pf_poolqueue pf_pools[2];
2148 __private_extern__ struct pf_palist pf_pabuf;
2149 __private_extern__ u_int32_t ticket_pabuf;
2150 #if PF_ALTQ
2151 TAILQ_HEAD(pf_altqqueue, pf_altq);
2152 __private_extern__ struct pf_altqqueue pf_altqs[2];
2153 __private_extern__ u_int32_t ticket_altqs_active;
2154 __private_extern__ u_int32_t ticket_altqs_inactive;
2155 __private_extern__ int altqs_inactive_open;
2156 __private_extern__ struct pf_altqqueue *pf_altqs_active;
2157 __private_extern__ struct pf_altqqueue *pf_altqs_inactive;
2158 #endif /* PF_ALTQ */
2159 __private_extern__ struct pf_poolqueue *pf_pools_active;
2160 __private_extern__ struct pf_poolqueue *pf_pools_inactive;
2161
2162 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *,
2163 struct pf_addr_wrap *);
2164 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *);
2165 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *);
2166 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *);
2167 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *);
2168
2169 __private_extern__ struct pool pf_src_tree_pl, pf_rule_pl;
2170 __private_extern__ struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl;
2171 __private_extern__ struct pool pf_state_scrub_pl;
2172 #if PF_ALTQ
2173 __private_extern__ struct pool pf_altq_pl;
2174 #endif /* PF_ALTQ */
2175 __private_extern__ struct pool pf_app_state_pl;
2176
2177 __private_extern__ struct thread *pf_purge_thread;
2178
2179 __private_extern__ void pfinit(void);
2180 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t);
2181 __private_extern__ void pf_purge_expired_src_nodes(void);
2182 __private_extern__ void pf_purge_expired_states(u_int32_t);
2183 __private_extern__ void pf_unlink_state(struct pf_state *);
2184 __private_extern__ void pf_free_state(struct pf_state *);
2185 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *);
2186 __private_extern__ int pf_insert_src_node(struct pf_src_node **,
2187 struct pf_rule *, struct pf_addr *, sa_family_t);
2188 __private_extern__ void pf_src_tree_remove_state(struct pf_state *);
2189 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
2190 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
2191 u_int, int *);
2192 __private_extern__ void pf_print_state(struct pf_state *);
2193 __private_extern__ void pf_print_flags(u_int8_t);
2194 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
2195 u_int8_t);
2196
2197 __private_extern__ struct ifnet *sync_ifp;
2198 __private_extern__ struct pf_rule pf_default_rule;
2199 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *,
2200 u_int8_t);
2201 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *);
2202
2203 struct ip_fw_args;
2204 #if INET
2205 __private_extern__ int pf_test(int, struct ifnet *, struct mbuf **,
2206 struct ether_header *, struct ip_fw_args *);
2207 #endif /* INET */
2208
2209 #if INET6
2210 __private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **,
2211 struct ether_header *, struct ip_fw_args *);
2212 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *,
2213 struct pf_addr *, struct pf_addr *, u_int8_t);
2214 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t);
2215 #endif /* INET6 */
2216
2217 __private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *,
2218 struct mbuf *, int);
2219 __private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int,
2220 u_short *, u_short *, sa_family_t);
2221 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
2222 __private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *,
2223 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
2224 struct pf_ruleset *, struct pf_pdesc *);
2225 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *,
2226 struct pf_addr *, struct pf_addr *, sa_family_t);
2227 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
2228 struct pf_addr *, sa_family_t);
2229 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
2230 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
2231 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *,
2232 union pf_state_xport *);
2233 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
2234 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
2235
2236 __private_extern__ void pf_normalize_init(void);
2237 __private_extern__ int pf_normalize_isempty(void);
2238 __private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *,
2239 u_short *, struct pf_pdesc *);
2240 __private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *,
2241 u_short *, struct pf_pdesc *);
2242 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *,
2243 int, int, void *, struct pf_pdesc *);
2244 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *);
2245 __private_extern__ int pf_normalize_tcp_init(struct mbuf *, int,
2246 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *,
2247 struct pf_state_peer *);
2248 __private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int,
2249 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *,
2250 struct pf_state_peer *, struct pf_state_peer *, int *);
2251 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *);
2252 __private_extern__ void pf_purge_expired_fragments(void);
2253 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af,
2254 struct pfi_kif *);
2255 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t,
2256 struct pf_addr_wrap *);
2257 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *);
2258 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *,
2259 struct pf_state_key *);
2260 __private_extern__ void pfr_initialize(void);
2261 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *,
2262 sa_family_t);
2263 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *,
2264 sa_family_t, u_int64_t, int, int, int);
2265 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *,
2266 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t);
2267 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *,
2268 struct pfi_dynaddr *);
2269 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *);
2270 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *,
2271 char *);
2272 __private_extern__ void pfr_detach_table(struct pfr_ktable *);
2273 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int);
2274 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int);
2275 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int);
2276 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t,
2277 int *, int);
2278 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t,
2279 int *, int);
2280 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int);
2281 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *,
2282 int *, int);
2283 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int);
2284 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *,
2285 u_int64_t);
2286 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t,
2287 int, int *, int);
2288 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t,
2289 int, int *, int);
2290 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t,
2291 int, int *, int *, int *, int *, int, u_int32_t);
2292 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t,
2293 int *, int);
2294 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t,
2295 int *, int);
2296 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t,
2297 int, int *, int);
2298 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t,
2299 int, int *, int);
2300 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *,
2301 int);
2302 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *,
2303 int);
2304 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *,
2305 int *, int);
2306 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t,
2307 int, int *, int *, u_int32_t, int);
2308
2309 __private_extern__ struct pfi_kif *pfi_all;
2310
2311 __private_extern__ void pfi_initialize(void);
2312 __private_extern__ struct pfi_kif *pfi_kif_get(const char *);
2313 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
2314 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
2315 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
2316 __private_extern__ void pfi_attach_ifnet(struct ifnet *);
2317 __private_extern__ void pfi_detach_ifnet(struct ifnet *);
2318 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2319 sa_family_t);
2320 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2321 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *);
2322 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2323 __private_extern__ void pfi_update_status(const char *, struct pf_status *);
2324 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *);
2325 __private_extern__ int pfi_set_flags(const char *, int);
2326 __private_extern__ int pfi_clear_flags(const char *, int);
2327
2328 __private_extern__ u_int16_t pf_tagname2tag(char *);
2329 __private_extern__ void pf_tag2tagname(u_int16_t, char *);
2330 __private_extern__ void pf_tag_ref(u_int16_t);
2331 __private_extern__ void pf_tag_unref(u_int16_t);
2332 __private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *,
2333 int, unsigned int, struct pf_pdesc *);
2334 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int,
2335 struct pf_rule **, struct pf_rule **, int *);
2336 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int,
2337 struct pf_rule **, struct pf_rule **, int *);
2338 __private_extern__ u_int32_t pf_qname2qid(char *);
2339 __private_extern__ void pf_qid2qname(u_int32_t, char *);
2340 __private_extern__ void pf_qid_unref(u_int32_t);
2341
2342 __private_extern__ struct pf_status pf_status;
2343 __private_extern__ struct pool pf_frent_pl, pf_frag_pl;
2344
2345 struct pf_pool_limit {
2346 void *pp;
2347 unsigned limit;
2348 };
2349 __private_extern__ struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
2350
2351 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **,
2352 struct mbuf **, unsigned int, int, struct ip_fw_args *);
2353 __private_extern__ int pf_ifaddr_hook(struct ifnet *, unsigned long);
2354 __private_extern__ void pf_ifnet_hook(struct ifnet *, int);
2355
2356 /*
2357 * The following are defined with "private extern" storage class for
2358 * kernel, and "extern" for user-space.
2359 */
2360 __private_extern__ struct pf_anchor_global pf_anchors;
2361 __private_extern__ struct pf_anchor pf_main_anchor;
2362 #define pf_main_ruleset pf_main_anchor.ruleset
2363
2364 __private_extern__ int pf_is_enabled;
2365 #define PF_IS_ENABLED (pf_is_enabled != 0)
2366 __private_extern__ u_int32_t pf_hash_seed;
2367
2368 #if PF_ALTQ
2369 __private_extern__ u_int32_t altq_allowed;
2370 #endif /* PF_ALTQ */
2371
2372 /* these ruleset functions can be linked into userland programs (pfctl) */
2373 __private_extern__ int pf_get_ruleset_number(u_int8_t);
2374 __private_extern__ void pf_init_ruleset(struct pf_ruleset *);
2375 __private_extern__ int pf_anchor_setup(struct pf_rule *,
2376 const struct pf_ruleset *, const char *);
2377 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *,
2378 const struct pf_rule *, struct pfioc_rule *);
2379 __private_extern__ void pf_anchor_remove(struct pf_rule *);
2380 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2381 __private_extern__ struct pf_anchor *pf_find_anchor(const char *);
2382 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *);
2383 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
2384 const char *, int, int *);
2385 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *);
2386 __private_extern__ void pf_rs_initialize(void);
2387
2388 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *);
2389 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *,
2390 struct mbuf *, int, const struct tcphdr *);
2391 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr(
2392 const struct ip *, const struct ip6_hdr *, const struct tcphdr *);
2393 __private_extern__ void pf_osfp_flush(void);
2394 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *);
2395 __private_extern__ void pf_osfp_initialize(void);
2396 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2397 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void);
2398 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *);
2399 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *);
2400 #else /* !KERNEL */
2401 extern struct pf_anchor_global pf_anchors;
2402 extern struct pf_anchor pf_main_anchor;
2403 #define pf_main_ruleset pf_main_anchor.ruleset
2404
2405 /* these ruleset functions can be linked into userland programs (pfctl) */
2406 extern int pf_get_ruleset_number(u_int8_t);
2407 extern void pf_init_ruleset(struct pf_ruleset *);
2408 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *,
2409 const char *);
2410 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *,
2411 struct pfioc_rule *);
2412 extern void pf_anchor_remove(struct pf_rule *);
2413 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2414 extern struct pf_anchor *pf_find_anchor(const char *);
2415 extern struct pf_ruleset *pf_find_ruleset(const char *);
2416 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
2417 const char *, int, int *);
2418 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *);
2419 extern void pf_rs_initialize(void);
2420 #endif /* !KERNEL */
2421
2422 #ifdef __cplusplus
2423 }
2424 #endif
2425 #endif /* PF || !KERNEL */
2426 #endif /* PRIVATE */
2427 #endif /* _NET_PFVAR_H_ */
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