1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
|
/* $OpenBSD: pfvar.h,v 1.117 2002/12/22 19:59:13 mcbride Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef _NET_PFVAR_H_
#define _NET_PFVAR_H_
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
enum { PF_IN=1, PF_OUT=2 };
enum { PF_PASS=0, PF_DROP=1, PF_SCRUB=2, PF_NAT=3, PF_NONAT=4,
PF_BINAT=5, PF_NOBINAT=6, PF_RDR=7, PF_NORDR=8 };
enum { PF_RULESET_RULE=0, PF_RULESET_NAT=1, PF_RULESET_BINAT=2,
PF_RULESET_RDR=3, PF_RULESET_MAX=4 };
enum { PF_OP_IRG=1, PF_OP_EQ=2, PF_OP_NE=3, PF_OP_LT=4,
PF_OP_LE=5, PF_OP_GT=6, PF_OP_GE=7, PF_OP_XRG=8, PF_OP_RRG=9 };
enum { PF_DEBUG_NONE=0, PF_DEBUG_URGENT=1, PF_DEBUG_MISC=2 };
enum { PF_CHANGE_ADD_HEAD=1, PF_CHANGE_ADD_TAIL=2,
PF_CHANGE_ADD_BEFORE=3, PF_CHANGE_ADD_AFTER=4,
PF_CHANGE_REMOVE=5, PF_CHANGE_GET_TICKET=6 };
enum { PFTM_TCP_FIRST_PACKET=0, PFTM_TCP_OPENING=1, PFTM_TCP_ESTABLISHED=2,
PFTM_TCP_CLOSING=3, PFTM_TCP_FIN_WAIT=4, PFTM_TCP_CLOSED=5,
PFTM_UDP_FIRST_PACKET=6, PFTM_UDP_SINGLE=7, PFTM_UDP_MULTIPLE=8,
PFTM_ICMP_FIRST_PACKET=9, PFTM_ICMP_ERROR_REPLY=10,
PFTM_OTHER_FIRST_PACKET=11, PFTM_OTHER_SINGLE=12,
PFTM_OTHER_MULTIPLE=13, PFTM_FRAG=14, PFTM_INTERVAL=15, PFTM_MAX=16 };
enum { PF_FASTROUTE=1, PF_ROUTETO=2, PF_DUPTO=3, PF_REPLYTO=4 };
enum { PF_LIMIT_STATES=0, PF_LIMIT_FRAGS=1, PF_LIMIT_MAX=2 };
#define PF_POOL_IDMASK 0x0f
enum { PF_POOL_NONE=0, PF_POOL_BITMASK=1, PF_POOL_RANDOM=2,
PF_POOL_SRCHASH=3, PF_POOL_ROUNDROBIN=4 };
#define PF_POOL_TYPEMASK 0x0f
#define PF_POOL_STATICPORT 0x10
struct pf_addr {
union {
struct in_addr v4;
struct in6_addr v6;
u_int8_t addr8[16];
u_int16_t addr16[8];
u_int32_t addr32[4];
char ifname[IFNAMSIZ];
} pfa; /* 128-bit address */
#define v4 pfa.v4
#define v6 pfa.v6
#define addr8 pfa.addr8
#define addr16 pfa.addr16
#define addr32 pfa.addr32
};
struct pf_addr_wrap {
struct pf_addr addr;
struct pf_addr mask;
struct pf_addr_dyn *addr_dyn;
};
struct pf_addr_dyn {
char ifname[IFNAMSIZ];
struct ifnet *ifp;
struct pf_addr *addr;
sa_family_t af;
void *hook_cookie;
u_int8_t undefined;
};
/*
* Address manipulation macros
*/
#ifdef _KERNEL
#ifdef INET
#ifndef INET6
#define PF_INET_ONLY
#endif /* ! INET6 */
#endif /* INET */
#ifdef INET6
#ifndef INET
#define PF_INET6_ONLY
#endif /* ! INET */
#endif /* INET6 */
#ifdef INET
#ifdef INET6
#define PF_INET_INET6
#endif /* INET6 */
#endif /* INET */
#else
#define PF_INET_INET6
#endif /* _KERNEL */
/* Both IPv4 and IPv6 */
#ifdef PF_INET_INET6
#define PF_AEQ(a, b, c) \
((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
((a)->addr32[0] == (b)->addr32[0] && \
(a)->addr32[1] == (b)->addr32[1] && \
(a)->addr32[2] == (b)->addr32[2] && \
(a)->addr32[3] == (b)->addr32[3])) \
#define PF_ANEQ(a, b, c) \
((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
((a)->addr32[0] != (b)->addr32[0] || \
(a)->addr32[1] != (b)->addr32[1] || \
(a)->addr32[2] != (b)->addr32[2] || \
(a)->addr32[3] != (b)->addr32[3])) \
#define PF_AZERO(a, c) \
((c == AF_INET && !(a)->addr32[0]) || \
(!(a)->addr32[0] && !(a)->addr32[1] && \
!(a)->addr32[2] && !(a)->addr32[3] )) \
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
pf_addrcpy(a, b, f)
#define PF_AINC(a, f) \
pf_addr_inc(a, f)
#define PF_POOLMASK(a, b, c, d, f) \
pf_poolmask(a, b, c, d, f)
#else
/* Just IPv6 */
#ifdef PF_INET6_ONLY
#define PF_AEQ(a, b, c) \
((a)->addr32[0] == (b)->addr32[0] && \
(a)->addr32[1] == (b)->addr32[1] && \
(a)->addr32[2] == (b)->addr32[2] && \
(a)->addr32[3] == (b)->addr32[3]) \
#define PF_ANEQ(a, b, c) \
((a)->addr32[0] != (b)->addr32[0] || \
(a)->addr32[1] != (b)->addr32[1] || \
(a)->addr32[2] != (b)->addr32[2] || \
(a)->addr32[3] != (b)->addr32[3]) \
#define PF_AZERO(a, c) \
(!(a)->addr32[0] && \
!(a)->addr32[1] && \
!(a)->addr32[2] && \
!(a)->addr32[3] ) \
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
pf_addrcpy(a, b, f)
#define PF_AINC(a, f) \
pf_addr_inc(a, f)
#define PF_POOLMASK(a, b, c, d, f) \
pf_poolmask(a, b, c, d, f)
#else
/* Just IPv4 */
#ifdef PF_INET_ONLY
#define PF_AEQ(a, b, c) \
((a)->addr32[0] == (b)->addr32[0])
#define PF_ANEQ(a, b, c) \
((a)->addr32[0] != (b)->addr32[0])
#define PF_AZERO(a, c) \
(!(a)->addr32[0])
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
(a)->v4.s_addr = (b)->v4.s_addr
#define PF_AINC(a, f) \
do { \
(a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
} while (0)
#define PF_POOLMASK(a, b, c, d, f) \
do { \
(a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
(((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
} while (0)
#endif /* PF_INET_ONLY */
#endif /* PF_INET6_ONLY */
#endif /* PF_INET_INET6 */
struct pf_rule_uid {
uid_t uid[2];
u_int8_t op;
};
struct pf_rule_gid {
uid_t gid[2];
u_int8_t op;
};
struct pf_rule_addr {
struct pf_addr_wrap addr;
u_int16_t port[2];
u_int8_t not;
u_int8_t port_op;
u_int8_t noroute;
};
struct pf_pooladdr {
struct pf_rule_addr addr;
TAILQ_ENTRY(pf_pooladdr) entries;
char ifname[IFNAMSIZ];
struct ifnet *ifp;
};
TAILQ_HEAD(pf_palist, pf_pooladdr);
struct pf_poolhashkey {
union {
u_int8_t key8[16];
u_int16_t key16[8];
u_int32_t key32[4];
} pfk; /* 128-bit hash key */
#define key8 pfk.key8
#define key16 pfk.key16
#define key32 pfk.key32
};
struct pf_pool {
struct pf_palist list;
struct pf_pooladdr *cur;
struct pf_poolhashkey key;
struct pf_addr counter;
u_int16_t proxy_port[2];
u_int8_t port_op;
u_int8_t opts;
};
struct pf_rule {
struct pf_rule_addr src;
struct pf_rule_addr dst;
#define PF_SKIP_ACTION 0
#define PF_SKIP_IFP 1
#define PF_SKIP_DIR 2
#define PF_SKIP_AF 3
#define PF_SKIP_PROTO 4
#define PF_SKIP_SRC_ADDR 5
#define PF_SKIP_SRC_PORT 6
#define PF_SKIP_DST_ADDR 7
#define PF_SKIP_DST_PORT 8
#define PF_SKIP_COUNT 9
union {
struct pf_rule *ptr;
u_int32_t nr;
} skip[PF_SKIP_COUNT];
#define PF_RULE_LABEL_SIZE 64
char label[PF_RULE_LABEL_SIZE];
u_int32_t timeout[PFTM_MAX];
#define PF_QNAME_SIZE 16
char ifname[IFNAMSIZ];
char qname[PF_QNAME_SIZE];
char pqname[PF_QNAME_SIZE];
#define PF_ANCHOR_NAME_SIZE 16
char anchorname[PF_ANCHOR_NAME_SIZE];
TAILQ_ENTRY(pf_rule) entries;
struct pf_pool rpool;
u_int64_t evaluations;
u_int64_t packets;
u_int64_t bytes;
struct ifnet *ifp;
struct pf_anchor *anchor;
u_int32_t states;
u_int32_t max_states;
u_int32_t qid;
u_int32_t pqid;
u_int32_t rt_listid;
u_int16_t nr;
u_int16_t return_icmp;
u_int16_t return_icmp6;
u_int16_t max_mss;
struct pf_rule_uid uid;
struct pf_rule_gid gid;
u_int8_t action;
u_int8_t direction;
u_int8_t log;
u_int8_t quick;
u_int8_t ifnot;
#define PF_STATE_NORMAL 0x1
#define PF_STATE_MODULATE 0x2
u_int8_t keep_state;
sa_family_t af;
u_int8_t proto;
u_int8_t type;
u_int8_t code;
u_int8_t flags;
u_int8_t flagset;
u_int8_t rule_flag;
u_int8_t min_ttl;
u_int8_t allow_opts;
u_int8_t rt;
u_int8_t return_ttl;
u_int8_t tos;
};
#define PFRULE_DROP 0x00
#define PFRULE_RETURNRST 0x01
#define PFRULE_NODF 0x02
#define PFRULE_FRAGMENT 0x04
#define PFRULE_RETURNICMP 0x08
#define PFRULE_FRAGCROP 0x10 /* non-buffering frag cache */
#define PFRULE_FRAGDROP 0x20 /* drop funny fragments */
#define PFRULE_RETURN 0x40
struct pf_state_host {
struct pf_addr addr;
u_int16_t port;
u_int16_t pad;
};
struct pf_state_peer {
u_int32_t seqlo; /* Max sequence number sent */
u_int32_t seqhi; /* Max the other end ACKd + win */
u_int32_t seqdiff; /* Sequence number modulator */
u_int16_t max_win;
u_int8_t state;
u_int8_t pad;
};
struct pf_state {
struct pf_state_host lan;
struct pf_state_host gwy;
struct pf_state_host ext;
struct pf_state_peer src;
struct pf_state_peer dst;
union {
struct pf_rule *ptr;
u_int32_t nr;
} rule;
struct pf_rule *nat_rule;
struct pf_addr rt_addr;
struct ifnet *rt_ifp;
u_int32_t creation;
u_int32_t expire;
u_int32_t packets;
u_int32_t bytes;
sa_family_t af;
u_int8_t proto;
u_int8_t direction;
u_int8_t log;
u_int8_t allow_opts;
u_int8_t pad[3];
};
struct pf_tree_node {
RB_ENTRY(pf_tree_node) entry;
struct pf_state *state;
struct pf_addr addr[2];
u_int16_t port[2];
sa_family_t af;
u_int8_t proto;
};
TAILQ_HEAD(pf_rulequeue, pf_rule);
struct pf_anchor;
struct pf_ruleset {
TAILQ_ENTRY(pf_ruleset) entries;
#define PF_RULESET_NAME_SIZE 16
char name[PF_RULESET_NAME_SIZE];
struct {
struct pf_rulequeue queues[2];
struct {
struct pf_rulequeue *ptr;
u_int32_t ticket;
} active, inactive;
} rules[4];
struct pf_anchor *anchor;
};
TAILQ_HEAD(pf_rulesetqueue, pf_ruleset);
struct pf_anchor {
TAILQ_ENTRY(pf_anchor) entries;
char name[PF_ANCHOR_NAME_SIZE];
struct pf_rulesetqueue rulesets;
};
TAILQ_HEAD(pf_anchorqueue, pf_anchor);
struct pf_pdesc {
u_int64_t tot_len; /* Make Mickey money */
union {
struct tcphdr *tcp;
struct udphdr *udp;
struct icmp *icmp;
#ifdef INET6
struct icmp6_hdr *icmp6;
#endif /* INET6 */
void *any;
} hdr;
struct pf_addr *src;
struct pf_addr *dst;
u_int16_t *ip_sum;
u_int32_t p_len; /* total length of payload */
u_int16_t flags; /* Let SCRUB trigger behavior in
* state code. Easier than tags */
sa_family_t af;
u_int8_t proto;
u_int8_t tos;
};
/* flags for RDR options */
#define PF_DPORT_RANGE 0x01 /* Dest port uses range */
#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
/* Reasons code for passing/dropping a packet */
#define PFRES_MATCH 0 /* Explicit match of a rule */
#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
#define PFRES_FRAG 2 /* Dropping following fragment */
#define PFRES_SHORT 3 /* Dropping short packet */
#define PFRES_NORM 4 /* Dropping by normalizer */
#define PFRES_MEMORY 5 /* Dropped due to lacking mem */
#define PFRES_MAX 6 /* total+1 */
#define PFRES_NAMES { \
"match", \
"bad-offset", \
"fragment", \
"short", \
"normalize", \
"memory", \
NULL \
}
/* UDP state enumeration */
#define PFUDPS_NO_TRAFFIC 0
#define PFUDPS_SINGLE 1
#define PFUDPS_MULTIPLE 2
#define PFUDPS_NSTATES 3 /* number of state levels */
#define PFUDPS_NAMES { \
"NO TRAFFIC", \
"SINGLE", \
"MULTIPLE", \
NULL \
}
/* Other protocol state enumeration */
#define PFOTHERS_NO_TRAFFIC 0
#define PFOTHERS_SINGLE 1
#define PFOTHERS_MULTIPLE 2
#define PFOTHERS_NSTATES 3 /* number of state levels */
#define PFOTHERS_NAMES { \
"NO TRAFFIC", \
"SINGLE", \
"MULTIPLE", \
NULL \
}
#define FCNT_STATE_SEARCH 0
#define FCNT_STATE_INSERT 1
#define FCNT_STATE_REMOVALS 2
#define FCNT_MAX 3
#define ACTION_SET(a, x) \
do { \
if ((a) != NULL) \
*(a) = (x); \
} while (0)
#define REASON_SET(a, x) \
do { \
if ((a) != NULL) \
*(a) = (x); \
if (x < PFRES_MAX) \
pf_status.counters[x]++; \
} while (0)
struct pf_status {
u_int64_t counters[PFRES_MAX];
u_int64_t fcounters[FCNT_MAX];
u_int64_t pcounters[2][2][3];
u_int64_t bcounters[2][2];
u_int32_t running;
u_int32_t states;
u_int32_t since;
u_int32_t debug;
char ifname[IFNAMSIZ];
};
struct cbq_opts {
u_int minburst;
u_int maxburst;
u_int pktsize;
u_int maxpktsize;
u_int ns_per_byte;
u_int maxidle;
int minidle;
u_int offtime;
int flags;
};
struct priq_opts {
int flags;
};
struct hfsc_opts {
/* real-time service curve */
u_int rtsc_m1; /* slope of the 1st segment in bps */
u_int rtsc_d; /* the x-projection of m1 in msec */
u_int rtsc_m2; /* slope of the 2nd segment in bps */
/* link-sharing service curve */
u_int lssc_m1;
u_int lssc_d;
u_int lssc_m2;
/* upper-limit service curve */
u_int ulsc_m1;
u_int ulsc_d;
u_int ulsc_m2;
int flags;
};
struct pf_altq {
char ifname[IFNAMSIZ];
void *altq_disc; /* discipline-specific state */
TAILQ_ENTRY(pf_altq) entries;
/* scheduler spec */
u_int8_t scheduler; /* scheduler type */
u_int16_t tbrsize; /* tokenbuket regulator size */
u_int32_t ifbandwidth; /* interface bandwidth */
/* queue spec */
char qname[PF_QNAME_SIZE]; /* queue name */
char parent[PF_QNAME_SIZE]; /* parent name */
u_int32_t parent_qid; /* parent queue id */
u_int32_t bandwidth; /* queue bandwidth */
u_int8_t priority; /* priority */
u_int16_t qlimit; /* queue size limit */
u_int16_t flags; /* misc flags */
union {
struct cbq_opts cbq_opts;
struct priq_opts priq_opts;
struct hfsc_opts hfsc_opts;
} pq_u;
u_int32_t qid; /* return value */
};
#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
/*
* ioctl parameter structures
*/
struct pfioc_pooladdr {
u_int32_t action;
u_int32_t ticket;
u_int32_t nr;
u_int32_t r_num;
u_int8_t r_action;
u_int8_t r_last;
u_int8_t af;
char anchor[PF_ANCHOR_NAME_SIZE];
char ruleset[PF_RULESET_NAME_SIZE];
struct pf_pooladdr addr;
};
struct pfioc_rule {
u_int32_t action;
u_int32_t ticket;
u_int32_t pool_ticket;
u_int32_t nr;
char anchor[PF_ANCHOR_NAME_SIZE];
char ruleset[PF_RULESET_NAME_SIZE];
struct pf_rule rule;
};
struct pfioc_natlook {
struct pf_addr saddr;
struct pf_addr daddr;
struct pf_addr rsaddr;
struct pf_addr rdaddr;
u_int16_t sport;
u_int16_t dport;
u_int16_t rsport;
u_int16_t rdport;
sa_family_t af;
u_int8_t proto;
u_int8_t direction;
};
struct pfioc_state {
u_int32_t nr;
struct pf_state state;
};
struct pfioc_state_kill {
/* XXX returns the number of states killed in psk_af */
sa_family_t psk_af;
int psk_proto;
struct pf_rule_addr psk_src;
struct pf_rule_addr psk_dst;
};
struct pfioc_states {
int ps_len;
union {
caddr_t psu_buf;
struct pf_state *psu_states;
} ps_u;
#define ps_buf ps_u.psu_buf
#define ps_states ps_u.psu_states
};
struct pfioc_if {
char ifname[IFNAMSIZ];
};
struct pfioc_tm {
int timeout;
int seconds;
};
struct pfioc_limit {
int index;
unsigned limit;
};
struct pfioc_altq {
u_int32_t action;
u_int32_t ticket;
u_int32_t nr;
struct pf_altq altq;
};
struct pfioc_qstats {
u_int32_t ticket;
u_int32_t nr;
void *buf;
int nbytes;
u_int8_t scheduler;
};
struct pfioc_anchor {
u_int32_t nr;
char name[PF_ANCHOR_NAME_SIZE];
};
struct pfioc_ruleset {
u_int32_t nr;
char anchor[PF_ANCHOR_NAME_SIZE];
char name[PF_RULESET_NAME_SIZE];
};
/*
* ioctl operations
*/
#define DIOCSTART _IO ('D', 1)
#define DIOCSTOP _IO ('D', 2)
#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule)
#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule)
#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
/* XXX cut 8 - 17 */
#define DIOCCLRSTATES _IO ('D', 18)
#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
#define DIOCCLRSTATUS _IO ('D', 22)
#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
/* XXX cut 26 - 28 */
#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
#define DIOCCLRRULECTRS _IO ('D', 38)
#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
#define DIOCSTARTALTQ _IO ('D', 42)
#define DIOCSTOPALTQ _IO ('D', 43)
#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t)
#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t)
#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor)
#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor)
#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
#ifdef _KERNEL
RB_HEAD(pf_state_tree, pf_tree_node);
RB_PROTOTYPE(pf_state_tree, pf_tree_node, entry, pf_state_compare);
extern struct pf_state_tree tree_lan_ext, tree_ext_gwy;
extern struct pf_anchorqueue pf_anchors;
extern struct pf_ruleset pf_main_ruleset;
TAILQ_HEAD(pf_poolqueue, pf_pool);
extern struct pf_poolqueue pf_pools[2];
TAILQ_HEAD(pf_altqqueue, pf_altq);
extern struct pf_altqqueue pf_altqs[2];
extern struct pf_palist pf_pabuf[2];
extern u_int32_t ticket_altqs_active;
extern u_int32_t ticket_altqs_inactive;
extern u_int32_t ticket_pabuf;
extern struct pf_altqqueue *pf_altqs_active;
extern struct pf_altqqueue *pf_altqs_inactive;
extern struct pf_poolqueue *pf_pools_active;
extern struct pf_poolqueue *pf_pools_inactive;
extern void pf_dynaddr_remove(struct pf_addr_wrap *);
extern int pf_dynaddr_setup(struct pf_addr_wrap *,
u_int8_t);
extern void pf_calc_skip_steps(struct pf_rulequeue *);
extern void pf_update_anchor_rules(void);
extern void pf_dynaddr_copyout(struct pf_addr_wrap *);
extern struct pool pf_tree_pl, pf_rule_pl, pf_addr_pl;
extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
extern void pf_purge_timeout(void *);
extern int pftm_interval;
extern void pf_purge_expired_states(void);
extern int pf_insert_state(struct pf_state *);
extern struct pf_state *pf_find_state(struct pf_state_tree *,
struct pf_tree_node *);
extern struct pf_anchor *pf_find_anchor(const char *);
extern struct ifnet *status_ifp;
extern int *pftm_timeouts[PFTM_MAX];
extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
u_int8_t);
#ifdef INET
int pf_test(int, struct ifnet *, struct mbuf **);
#endif /* INET */
#ifdef INET6
int pf_test6(int, struct ifnet *, struct mbuf **);
#endif /* INET */
int pflog_packet(struct ifnet *, struct mbuf *, sa_family_t, u_short,
u_short, struct pf_rule *);
int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
struct pf_addr *, sa_family_t);
int pf_match(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
void pf_normalize_init(void);
int pf_normalize_ip(struct mbuf **, int, struct ifnet *, u_short *);
void pf_purge_expired_fragments(void);
int pf_routable(struct pf_addr *addr, sa_family_t af);
extern struct pf_status pf_status;
extern struct pool pf_frent_pl, pf_frag_pl;
struct pf_pool_limit {
void *pp;
unsigned limit;
};
extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
#endif /* _KERNEL */
#endif /* _NET_PFVAR_H_ */
|