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33 #ifndef _NET_PFVAR_H_
34 #define _NET_PFVAR_H_
35
36 #include <sys/param.h>
37 #include <sys/types.h>
38 #include <sys/queue.h>
39 #include <sys/tree.h>
40 #include <sys/rwlock.h>
41
42 #include <net/radix.h>
43 #include <net/route.h>
44 #include <netinet/ip_ipsp.h>
45 #include <netinet/tcp_fsm.h>
46
47 struct ip;
48 struct ip6_hdr;
49
50 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
51 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
52
53 #define PF_MD5_DIGEST_LENGTH 16
54 #ifdef MD5_DIGEST_LENGTH
55 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
56 #error
57 #endif
58 #endif
59
60 enum { PF_INOUT, PF_IN, PF_OUT };
61 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
62 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
63 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
64 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
65 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
66 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
67 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
68 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
69 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
70 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
71 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
72 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
73
74
75
76
77
78 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
79 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
80 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
81 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
82 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
83 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
84 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
85 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
86 PFTM_UNTIL_PACKET };
87
88
89 #define PFTM_TCP_FIRST_PACKET_VAL 120
90 #define PFTM_TCP_OPENING_VAL 30
91 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60
92 #define PFTM_TCP_CLOSING_VAL 15 * 60
93 #define PFTM_TCP_FIN_WAIT_VAL 45
94 #define PFTM_TCP_CLOSED_VAL 90
95 #define PFTM_UDP_FIRST_PACKET_VAL 60
96 #define PFTM_UDP_SINGLE_VAL 30
97 #define PFTM_UDP_MULTIPLE_VAL 60
98 #define PFTM_ICMP_FIRST_PACKET_VAL 20
99 #define PFTM_ICMP_ERROR_REPLY_VAL 10
100 #define PFTM_OTHER_FIRST_PACKET_VAL 60
101 #define PFTM_OTHER_SINGLE_VAL 30
102 #define PFTM_OTHER_MULTIPLE_VAL 60
103 #define PFTM_FRAG_VAL 30
104 #define PFTM_INTERVAL_VAL 10
105 #define PFTM_SRC_NODE_VAL 0
106 #define PFTM_TS_DIFF_VAL 30
107
108 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
109 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
110 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
111 #define PF_POOL_IDMASK 0x0f
112 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
113 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
114 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
115 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED };
116 #define PF_POOL_TYPEMASK 0x0f
117 #define PF_POOL_STICKYADDR 0x20
118 #define PF_WSCALE_FLAG 0x80
119 #define PF_WSCALE_MASK 0x0f
120
121 #define PF_LOG 0x01
122 #define PF_LOG_ALL 0x02
123 #define PF_LOG_SOCKET_LOOKUP 0x04
124
125 struct pf_addr {
126 union {
127 struct in_addr v4;
128 struct in6_addr v6;
129 u_int8_t addr8[16];
130 u_int16_t addr16[8];
131 u_int32_t addr32[4];
132 } pfa;
133 #define v4 pfa.v4
134 #define v6 pfa.v6
135 #define addr8 pfa.addr8
136 #define addr16 pfa.addr16
137 #define addr32 pfa.addr32
138 };
139
140 #define PF_TABLE_NAME_SIZE 32
141
142 #define PFI_AFLAG_NETWORK 0x01
143 #define PFI_AFLAG_BROADCAST 0x02
144 #define PFI_AFLAG_PEER 0x04
145 #define PFI_AFLAG_MODEMASK 0x07
146 #define PFI_AFLAG_NOALIAS 0x08
147
148 struct pf_addr_wrap {
149 union {
150 struct {
151 struct pf_addr addr;
152 struct pf_addr mask;
153 } a;
154 char ifname[IFNAMSIZ];
155 char tblname[PF_TABLE_NAME_SIZE];
156 char rtlabelname[RTLABEL_LEN];
157 u_int32_t rtlabel;
158 } v;
159 union {
160 struct pfi_dynaddr *dyn;
161 struct pfr_ktable *tbl;
162 int dyncnt;
163 int tblcnt;
164 } p;
165 u_int8_t type;
166 u_int8_t iflags;
167 };
168
169 #ifdef _KERNEL
170
171 struct pfi_dynaddr {
172 TAILQ_ENTRY(pfi_dynaddr) entry;
173 struct pf_addr pfid_addr4;
174 struct pf_addr pfid_mask4;
175 struct pf_addr pfid_addr6;
176 struct pf_addr pfid_mask6;
177 struct pfr_ktable *pfid_kt;
178 struct pfi_kif *pfid_kif;
179 void *pfid_hook_cookie;
180 int pfid_net;
181 int pfid_acnt4;
182 int pfid_acnt6;
183 sa_family_t pfid_af;
184 u_int8_t pfid_iflags;
185 };
186
187
188
189
190
191 #ifdef INET
192 #ifndef INET6
193 #define PF_INET_ONLY
194 #endif
195 #endif
196
197 #ifdef INET6
198 #ifndef INET
199 #define PF_INET6_ONLY
200 #endif
201 #endif
202
203 #ifdef INET
204 #ifdef INET6
205 #define PF_INET_INET6
206 #endif
207 #endif
208
209 #else
210
211 #define PF_INET_INET6
212
213 #endif
214
215
216 #ifdef PF_INET_INET6
217
218 #define PF_AEQ(a, b, c) \
219 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
220 ((a)->addr32[3] == (b)->addr32[3] && \
221 (a)->addr32[2] == (b)->addr32[2] && \
222 (a)->addr32[1] == (b)->addr32[1] && \
223 (a)->addr32[0] == (b)->addr32[0])) \
224
225 #define PF_ANEQ(a, b, c) \
226 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
227 ((a)->addr32[3] != (b)->addr32[3] || \
228 (a)->addr32[2] != (b)->addr32[2] || \
229 (a)->addr32[1] != (b)->addr32[1] || \
230 (a)->addr32[0] != (b)->addr32[0])) \
231
232 #define PF_AZERO(a, c) \
233 ((c == AF_INET && !(a)->addr32[0]) || \
234 (!(a)->addr32[0] && !(a)->addr32[1] && \
235 !(a)->addr32[2] && !(a)->addr32[3] )) \
236
237 #define PF_MATCHA(n, a, m, b, f) \
238 pf_match_addr(n, a, m, b, f)
239
240 #define PF_ACPY(a, b, f) \
241 pf_addrcpy(a, b, f)
242
243 #define PF_AINC(a, f) \
244 pf_addr_inc(a, f)
245
246 #define PF_POOLMASK(a, b, c, d, f) \
247 pf_poolmask(a, b, c, d, f)
248
249 #else
250
251
252
253 #ifdef PF_INET6_ONLY
254
255 #define PF_AEQ(a, b, c) \
256 ((a)->addr32[3] == (b)->addr32[3] && \
257 (a)->addr32[2] == (b)->addr32[2] && \
258 (a)->addr32[1] == (b)->addr32[1] && \
259 (a)->addr32[0] == (b)->addr32[0]) \
260
261 #define PF_ANEQ(a, b, c) \
262 ((a)->addr32[3] != (b)->addr32[3] || \
263 (a)->addr32[2] != (b)->addr32[2] || \
264 (a)->addr32[1] != (b)->addr32[1] || \
265 (a)->addr32[0] != (b)->addr32[0]) \
266
267 #define PF_AZERO(a, c) \
268 (!(a)->addr32[0] && \
269 !(a)->addr32[1] && \
270 !(a)->addr32[2] && \
271 !(a)->addr32[3] ) \
272
273 #define PF_MATCHA(n, a, m, b, f) \
274 pf_match_addr(n, a, m, b, f)
275
276 #define PF_ACPY(a, b, f) \
277 pf_addrcpy(a, b, f)
278
279 #define PF_AINC(a, f) \
280 pf_addr_inc(a, f)
281
282 #define PF_POOLMASK(a, b, c, d, f) \
283 pf_poolmask(a, b, c, d, f)
284
285 #else
286
287
288 #ifdef PF_INET_ONLY
289
290 #define PF_AEQ(a, b, c) \
291 ((a)->addr32[0] == (b)->addr32[0])
292
293 #define PF_ANEQ(a, b, c) \
294 ((a)->addr32[0] != (b)->addr32[0])
295
296 #define PF_AZERO(a, c) \
297 (!(a)->addr32[0])
298
299 #define PF_MATCHA(n, a, m, b, f) \
300 pf_match_addr(n, a, m, b, f)
301
302 #define PF_ACPY(a, b, f) \
303 (a)->v4.s_addr = (b)->v4.s_addr
304
305 #define PF_AINC(a, f) \
306 do { \
307 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
308 } while (0)
309
310 #define PF_POOLMASK(a, b, c, d, f) \
311 do { \
312 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
313 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
314 } while (0)
315
316 #endif
317 #endif
318 #endif
319
320 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
321 ( \
322 (((aw)->type == PF_ADDR_NOROUTE && \
323 pf_routable((x), (af), NULL)) || \
324 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
325 pf_routable((x), (af), (ifp))) || \
326 ((aw)->type == PF_ADDR_RTLABEL && \
327 !pf_rtlabel_match((x), (af), (aw))) || \
328 ((aw)->type == PF_ADDR_TABLE && \
329 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
330 ((aw)->type == PF_ADDR_DYNIFTL && \
331 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
332 ((aw)->type == PF_ADDR_ADDRMASK && \
333 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
334 !PF_MATCHA(0, &(aw)->v.a.addr, \
335 &(aw)->v.a.mask, (x), (af))))) != \
336 (neg) \
337 )
338
339
340 struct pf_rule_uid {
341 uid_t uid[2];
342 u_int8_t op;
343 };
344
345 struct pf_rule_gid {
346 uid_t gid[2];
347 u_int8_t op;
348 };
349
350 struct pf_rule_addr {
351 struct pf_addr_wrap addr;
352 u_int16_t port[2];
353 u_int8_t neg;
354 u_int8_t port_op;
355 };
356
357 struct pf_pooladdr {
358 struct pf_addr_wrap addr;
359 TAILQ_ENTRY(pf_pooladdr) entries;
360 char ifname[IFNAMSIZ];
361 struct pfi_kif *kif;
362 };
363
364 TAILQ_HEAD(pf_palist, pf_pooladdr);
365
366 struct pf_poolhashkey {
367 union {
368 u_int8_t key8[16];
369 u_int16_t key16[8];
370 u_int32_t key32[4];
371 } pfk;
372 #define key8 pfk.key8
373 #define key16 pfk.key16
374 #define key32 pfk.key32
375 };
376
377 struct pf_pool {
378 struct pf_palist list;
379 struct pf_pooladdr *cur;
380 struct pf_poolhashkey key;
381 struct pf_addr counter;
382 int tblidx;
383 u_int16_t proxy_port[2];
384 u_int8_t port_op;
385 u_int8_t opts;
386 };
387
388
389
390 typedef u_int32_t pf_osfp_t;
391 #define PF_OSFP_ANY ((pf_osfp_t)0)
392 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
393 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
394
395 struct pf_osfp_entry {
396 SLIST_ENTRY(pf_osfp_entry) fp_entry;
397 pf_osfp_t fp_os;
398 int fp_enflags;
399 #define PF_OSFP_EXPANDED 0x001
400 #define PF_OSFP_GENERIC 0x002
401 #define PF_OSFP_NODETAIL 0x004
402 #define PF_OSFP_LEN 32
403 char fp_class_nm[PF_OSFP_LEN];
404 char fp_version_nm[PF_OSFP_LEN];
405 char fp_subtype_nm[PF_OSFP_LEN];
406 };
407 #define PF_OSFP_ENTRY_EQ(a, b) \
408 ((a)->fp_os == (b)->fp_os && \
409 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
410 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
411 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
412
413
414 #define _FP_RESERVED_BIT 1
415 #define _FP_UNUSED_BITS 1
416 #define _FP_CLASS_BITS 10
417 #define _FP_VERSION_BITS 10
418 #define _FP_SUBTYPE_BITS 10
419 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
420 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
421 ((1 << _FP_CLASS_BITS) - 1); \
422 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
423 ((1 << _FP_VERSION_BITS) - 1);\
424 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
425 } while(0)
426 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
427 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
428 + _FP_SUBTYPE_BITS); \
429 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
430 _FP_SUBTYPE_BITS; \
431 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
432 } while(0)
433
434
435 typedef u_int64_t pf_tcpopts_t;
436 struct pf_os_fingerprint {
437 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses;
438 pf_tcpopts_t fp_tcpopts;
439 u_int16_t fp_wsize;
440 u_int16_t fp_psize;
441 u_int16_t fp_mss;
442 u_int16_t fp_flags;
443 #define PF_OSFP_WSIZE_MOD 0x0001
444 #define PF_OSFP_WSIZE_DC 0x0002
445 #define PF_OSFP_WSIZE_MSS 0x0004
446 #define PF_OSFP_WSIZE_MTU 0x0008
447 #define PF_OSFP_PSIZE_MOD 0x0010
448 #define PF_OSFP_PSIZE_DC 0x0020
449 #define PF_OSFP_WSCALE 0x0040
450 #define PF_OSFP_WSCALE_MOD 0x0080
451 #define PF_OSFP_WSCALE_DC 0x0100
452 #define PF_OSFP_MSS 0x0200
453 #define PF_OSFP_MSS_MOD 0x0400
454 #define PF_OSFP_MSS_DC 0x0800
455 #define PF_OSFP_DF 0x1000
456 #define PF_OSFP_TS0 0x2000
457 #define PF_OSFP_INET6 0x4000
458 u_int8_t fp_optcnt;
459 u_int8_t fp_wscale;
460 u_int8_t fp_ttl;
461 #define PF_OSFP_MAXTTL_OFFSET 40
462
463 #define PF_OSFP_TCPOPT_NOP 0x0
464 #define PF_OSFP_TCPOPT_WSCALE 0x1
465 #define PF_OSFP_TCPOPT_MSS 0x2
466 #define PF_OSFP_TCPOPT_SACK 0x3
467 #define PF_OSFP_TCPOPT_TS 0x4
468 #define PF_OSFP_TCPOPT_BITS 3
469 #define PF_OSFP_MAX_OPTS \
470 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
471 / PF_OSFP_TCPOPT_BITS
472
473 SLIST_ENTRY(pf_os_fingerprint) fp_next;
474 };
475
476 struct pf_osfp_ioctl {
477 struct pf_osfp_entry fp_os;
478 pf_tcpopts_t fp_tcpopts;
479 u_int16_t fp_wsize;
480 u_int16_t fp_psize;
481 u_int16_t fp_mss;
482 u_int16_t fp_flags;
483 u_int8_t fp_optcnt;
484 u_int8_t fp_wscale;
485 u_int8_t fp_ttl;
486
487 int fp_getnum;
488 };
489
490
491 union pf_rule_ptr {
492 struct pf_rule *ptr;
493 u_int32_t nr;
494 };
495
496 #define PF_ANCHOR_NAME_SIZE 64
497
498 struct pf_rule {
499 struct pf_rule_addr src;
500 struct pf_rule_addr dst;
501 #define PF_SKIP_IFP 0
502 #define PF_SKIP_DIR 1
503 #define PF_SKIP_AF 2
504 #define PF_SKIP_PROTO 3
505 #define PF_SKIP_SRC_ADDR 4
506 #define PF_SKIP_SRC_PORT 5
507 #define PF_SKIP_DST_ADDR 6
508 #define PF_SKIP_DST_PORT 7
509 #define PF_SKIP_COUNT 8
510 union pf_rule_ptr skip[PF_SKIP_COUNT];
511 #define PF_RULE_LABEL_SIZE 64
512 char label[PF_RULE_LABEL_SIZE];
513 #define PF_QNAME_SIZE 64
514 char ifname[IFNAMSIZ];
515 char qname[PF_QNAME_SIZE];
516 char pqname[PF_QNAME_SIZE];
517 #define PF_TAG_NAME_SIZE 64
518 char tagname[PF_TAG_NAME_SIZE];
519 char match_tagname[PF_TAG_NAME_SIZE];
520
521 char overload_tblname[PF_TABLE_NAME_SIZE];
522
523 TAILQ_ENTRY(pf_rule) entries;
524 struct pf_pool rpool;
525
526 u_int64_t evaluations;
527 u_int64_t packets[2];
528 u_int64_t bytes[2];
529
530 struct pfi_kif *kif;
531 struct pf_anchor *anchor;
532 struct pfr_ktable *overload_tbl;
533
534 pf_osfp_t os_fingerprint;
535
536 int rtableid;
537 u_int32_t timeout[PFTM_MAX];
538 u_int32_t states;
539 u_int32_t max_states;
540 u_int32_t src_nodes;
541 u_int32_t max_src_nodes;
542 u_int32_t max_src_states;
543 u_int32_t max_src_conn;
544 struct {
545 u_int32_t limit;
546 u_int32_t seconds;
547 } max_src_conn_rate;
548 u_int32_t qid;
549 u_int32_t pqid;
550 u_int32_t rt_listid;
551 u_int32_t nr;
552 u_int32_t prob;
553 uid_t cuid;
554 pid_t cpid;
555
556 u_int16_t return_icmp;
557 u_int16_t return_icmp6;
558 u_int16_t max_mss;
559 u_int16_t tag;
560 u_int16_t match_tag;
561
562 struct pf_rule_uid uid;
563 struct pf_rule_gid gid;
564
565 u_int32_t rule_flag;
566 u_int8_t action;
567 u_int8_t direction;
568 u_int8_t log;
569 u_int8_t logif;
570 u_int8_t quick;
571 u_int8_t ifnot;
572 u_int8_t match_tag_not;
573 u_int8_t natpass;
574
575 #define PF_STATE_NORMAL 0x1
576 #define PF_STATE_MODULATE 0x2
577 #define PF_STATE_SYNPROXY 0x3
578 u_int8_t keep_state;
579 sa_family_t af;
580 u_int8_t proto;
581 u_int8_t type;
582 u_int8_t code;
583 u_int8_t flags;
584 u_int8_t flagset;
585 u_int8_t min_ttl;
586 u_int8_t allow_opts;
587 u_int8_t rt;
588 u_int8_t return_ttl;
589 u_int8_t tos;
590 u_int8_t anchor_relative;
591 u_int8_t anchor_wildcard;
592
593 #define PF_FLUSH 0x01
594 #define PF_FLUSH_GLOBAL 0x02
595 u_int8_t flush;
596 };
597
598
599 #define PFRULE_DROP 0x0000
600 #define PFRULE_RETURNRST 0x0001
601 #define PFRULE_FRAGMENT 0x0002
602 #define PFRULE_RETURNICMP 0x0004
603 #define PFRULE_RETURN 0x0008
604 #define PFRULE_NOSYNC 0x0010
605 #define PFRULE_SRCTRACK 0x0020
606 #define PFRULE_RULESRCTRACK 0x0040
607
608
609 #define PFRULE_NODF 0x0100
610 #define PFRULE_FRAGCROP 0x0200
611 #define PFRULE_FRAGDROP 0x0400
612 #define PFRULE_RANDOMID 0x0800
613 #define PFRULE_REASSEMBLE_TCP 0x1000
614
615
616 #define PFRULE_IFBOUND 0x00010000
617
618 #define PFSTATE_HIWAT 10000
619 #define PFSTATE_ADAPT_START 6000
620 #define PFSTATE_ADAPT_END 12000
621
622
623 struct pf_threshold {
624 u_int32_t limit;
625 #define PF_THRESHOLD_MULT 1000
626 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
627 u_int32_t seconds;
628 u_int32_t count;
629 u_int32_t last;
630 };
631
632 struct pf_src_node {
633 RB_ENTRY(pf_src_node) entry;
634 struct pf_addr addr;
635 struct pf_addr raddr;
636 union pf_rule_ptr rule;
637 struct pfi_kif *kif;
638 u_int64_t bytes[2];
639 u_int64_t packets[2];
640 u_int32_t states;
641 u_int32_t conn;
642 struct pf_threshold conn_rate;
643 u_int32_t creation;
644 u_int32_t expire;
645 sa_family_t af;
646 u_int8_t ruletype;
647 };
648
649 #define PFSNODE_HIWAT 10000
650
651 struct pf_state_scrub {
652 struct timeval pfss_last;
653 u_int32_t pfss_tsecr;
654 u_int32_t pfss_tsval;
655 u_int32_t pfss_tsval0;
656 u_int16_t pfss_flags;
657 #define PFSS_TIMESTAMP 0x0001
658 #define PFSS_PAWS 0x0010
659 #define PFSS_PAWS_IDLED 0x0020
660 #define PFSS_DATA_TS 0x0040
661 #define PFSS_DATA_NOTS 0x0080
662 u_int8_t pfss_ttl;
663 u_int8_t pad;
664 u_int32_t pfss_ts_mod;
665 };
666
667 struct pf_state_host {
668 struct pf_addr addr;
669 u_int16_t port;
670 u_int16_t pad;
671 };
672
673 struct pf_state_peer {
674 u_int32_t seqlo;
675 u_int32_t seqhi;
676 u_int32_t seqdiff;
677 u_int16_t max_win;
678 u_int8_t state;
679 u_int8_t wscale;
680 u_int16_t mss;
681 u_int8_t tcp_est;
682 struct pf_state_scrub *scrub;
683 u_int8_t pad[3];
684 };
685
686 TAILQ_HEAD(pf_state_queue, pf_state);
687
688
689 struct pf_state_key_cmp {
690 struct pf_state_host lan;
691 struct pf_state_host gwy;
692 struct pf_state_host ext;
693 sa_family_t af;
694 u_int8_t proto;
695 u_int8_t direction;
696 u_int8_t pad;
697 };
698
699 TAILQ_HEAD(pf_statelist, pf_state);
700
701 struct pf_state_key {
702 struct pf_state_host lan;
703 struct pf_state_host gwy;
704 struct pf_state_host ext;
705 sa_family_t af;
706 u_int8_t proto;
707 u_int8_t direction;
708 u_int8_t pad;
709
710 RB_ENTRY(pf_state_key) entry_lan_ext;
711 RB_ENTRY(pf_state_key) entry_ext_gwy;
712 struct pf_statelist states;
713 u_short refcnt;
714 };
715
716
717
718 struct pf_state_cmp {
719 u_int64_t id;
720 u_int32_t creatorid;
721 u_int32_t pad;
722 };
723
724 struct pf_state {
725 u_int64_t id;
726 u_int32_t creatorid;
727 u_int32_t pad;
728
729 TAILQ_ENTRY(pf_state) entry_list;
730 TAILQ_ENTRY(pf_state) next;
731 RB_ENTRY(pf_state) entry_id;
732 struct pf_state_peer src;
733 struct pf_state_peer dst;
734 union pf_rule_ptr rule;
735 union pf_rule_ptr anchor;
736 union pf_rule_ptr nat_rule;
737 struct pf_addr rt_addr;
738 struct pf_state_key *state_key;
739 struct pfi_kif *kif;
740 struct pfi_kif *rt_kif;
741 struct pf_src_node *src_node;
742 struct pf_src_node *nat_src_node;
743 u_int64_t packets[2];
744 u_int64_t bytes[2];
745 u_int32_t creation;
746 u_int32_t expire;
747 u_int32_t pfsync_time;
748 u_int16_t tag;
749 u_int8_t log;
750 u_int8_t allow_opts;
751 u_int8_t timeout;
752 u_int8_t sync_flags;
753 #define PFSTATE_NOSYNC 0x01
754 #define PFSTATE_FROMSYNC 0x02
755 #define PFSTATE_STALE 0x04
756 };
757
758
759
760
761
762 struct pfsync_state_scrub {
763 u_int16_t pfss_flags;
764 u_int8_t pfss_ttl;
765 #define PFSYNC_SCRUB_FLAG_VALID 0x01
766 u_int8_t scrub_flag;
767 u_int32_t pfss_ts_mod;
768 } __packed;
769
770 struct pfsync_state_host {
771 struct pf_addr addr;
772 u_int16_t port;
773 u_int16_t pad[3];
774 } __packed;
775
776 struct pfsync_state_peer {
777 struct pfsync_state_scrub scrub;
778 u_int32_t seqlo;
779 u_int32_t seqhi;
780 u_int32_t seqdiff;
781 u_int16_t max_win;
782 u_int16_t mss;
783 u_int8_t state;
784 u_int8_t wscale;
785 u_int8_t pad[6];
786 } __packed;
787
788 struct pfsync_state {
789 u_int32_t id[2];
790 char ifname[IFNAMSIZ];
791 struct pfsync_state_host lan;
792 struct pfsync_state_host gwy;
793 struct pfsync_state_host ext;
794 struct pfsync_state_peer src;
795 struct pfsync_state_peer dst;
796 struct pf_addr rt_addr;
797 u_int32_t rule;
798 u_int32_t anchor;
799 u_int32_t nat_rule;
800 u_int32_t creation;
801 u_int32_t expire;
802 u_int32_t packets[2][2];
803 u_int32_t bytes[2][2];
804 u_int32_t creatorid;
805 sa_family_t af;
806 u_int8_t proto;
807 u_int8_t direction;
808 u_int8_t log;
809 u_int8_t allow_opts;
810 u_int8_t timeout;
811 u_int8_t sync_flags;
812 u_int8_t updates;
813 } __packed;
814
815 #define PFSYNC_FLAG_COMPRESS 0x01
816 #define PFSYNC_FLAG_STALE 0x02
817 #define PFSYNC_FLAG_SRCNODE 0x04
818 #define PFSYNC_FLAG_NATSRCNODE 0x08
819
820
821 #define pf_state_peer_to_pfsync(s,d) do { \
822 (d)->seqlo = (s)->seqlo; \
823 (d)->seqhi = (s)->seqhi; \
824 (d)->seqdiff = (s)->seqdiff; \
825 (d)->max_win = (s)->max_win; \
826 (d)->mss = (s)->mss; \
827 (d)->state = (s)->state; \
828 (d)->wscale = (s)->wscale; \
829 if ((s)->scrub) { \
830 (d)->scrub.pfss_flags = \
831 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \
832 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
833 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \
834 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
835 } \
836 } while (0)
837
838 #define pf_state_peer_from_pfsync(s,d) do { \
839 (d)->seqlo = (s)->seqlo; \
840 (d)->seqhi = (s)->seqhi; \
841 (d)->seqdiff = (s)->seqdiff; \
842 (d)->max_win = (s)->max_win; \
843 (d)->mss = ntohs((s)->mss); \
844 (d)->state = (s)->state; \
845 (d)->wscale = (s)->wscale; \
846 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
847 (d)->scrub != NULL) { \
848 (d)->scrub->pfss_flags = \
849 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
850 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
851 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \
852 } \
853 } while (0)
854
855 #define pf_state_counter_to_pfsync(s,d) do { \
856 d[0] = (s>>32)&0xffffffff; \
857 d[1] = s&0xffffffff; \
858 } while (0)
859
860 #define pf_state_counter_from_pfsync(s) \
861 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
862
863
864
865 TAILQ_HEAD(pf_rulequeue, pf_rule);
866
867 struct pf_anchor;
868
869 struct pf_ruleset {
870 struct {
871 struct pf_rulequeue queues[2];
872 struct {
873 struct pf_rulequeue *ptr;
874 struct pf_rule **ptr_array;
875 u_int32_t rcount;
876 u_int32_t ticket;
877 int open;
878 } active, inactive;
879 } rules[PF_RULESET_MAX];
880 struct pf_anchor *anchor;
881 u_int32_t tticket;
882 int tables;
883 int topen;
884 };
885
886 RB_HEAD(pf_anchor_global, pf_anchor);
887 RB_HEAD(pf_anchor_node, pf_anchor);
888 struct pf_anchor {
889 RB_ENTRY(pf_anchor) entry_global;
890 RB_ENTRY(pf_anchor) entry_node;
891 struct pf_anchor *parent;
892 struct pf_anchor_node children;
893 char name[PF_ANCHOR_NAME_SIZE];
894 char path[MAXPATHLEN];
895 struct pf_ruleset ruleset;
896 int refcnt;
897 int match;
898 };
899 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
900 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
901
902 #define PF_RESERVED_ANCHOR "_pf"
903
904 #define PFR_TFLAG_PERSIST 0x00000001
905 #define PFR_TFLAG_CONST 0x00000002
906 #define PFR_TFLAG_ACTIVE 0x00000004
907 #define PFR_TFLAG_INACTIVE 0x00000008
908 #define PFR_TFLAG_REFERENCED 0x00000010
909 #define PFR_TFLAG_REFDANCHOR 0x00000020
910 #define PFR_TFLAG_USRMASK 0x00000003
911 #define PFR_TFLAG_SETMASK 0x0000003C
912 #define PFR_TFLAG_ALLMASK 0x0000003F
913
914 struct pfr_table {
915 char pfrt_anchor[MAXPATHLEN];
916 char pfrt_name[PF_TABLE_NAME_SIZE];
917 u_int32_t pfrt_flags;
918 u_int8_t pfrt_fback;
919 };
920
921 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
922 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
923 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
924
925 struct pfr_addr {
926 union {
927 struct in_addr _pfra_ip4addr;
928 struct in6_addr _pfra_ip6addr;
929 } pfra_u;
930 u_int8_t pfra_af;
931 u_int8_t pfra_net;
932 u_int8_t pfra_not;
933 u_int8_t pfra_fback;
934 };
935 #define pfra_ip4addr pfra_u._pfra_ip4addr
936 #define pfra_ip6addr pfra_u._pfra_ip6addr
937
938 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
939 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
940 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
941
942 struct pfr_astats {
943 struct pfr_addr pfras_a;
944 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
945 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
946 long pfras_tzero;
947 };
948
949 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
950
951 struct pfr_tstats {
952 struct pfr_table pfrts_t;
953 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
954 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
955 u_int64_t pfrts_match;
956 u_int64_t pfrts_nomatch;
957 long pfrts_tzero;
958 int pfrts_cnt;
959 int pfrts_refcnt[PFR_REFCNT_MAX];
960 };
961 #define pfrts_name pfrts_t.pfrt_name
962 #define pfrts_flags pfrts_t.pfrt_flags
963
964 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
965 struct pfr_kentry {
966 struct radix_node pfrke_node[2];
967 union sockaddr_union pfrke_sa;
968 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
969 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
970 SLIST_ENTRY(pfr_kentry) pfrke_workq;
971 long pfrke_tzero;
972 u_int8_t pfrke_af;
973 u_int8_t pfrke_net;
974 u_int8_t pfrke_not;
975 u_int8_t pfrke_mark;
976 u_int8_t pfrke_intrpool;
977 };
978
979 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
980 RB_HEAD(pfr_ktablehead, pfr_ktable);
981 struct pfr_ktable {
982 struct pfr_tstats pfrkt_ts;
983 RB_ENTRY(pfr_ktable) pfrkt_tree;
984 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
985 struct radix_node_head *pfrkt_ip4;
986 struct radix_node_head *pfrkt_ip6;
987 struct pfr_ktable *pfrkt_shadow;
988 struct pfr_ktable *pfrkt_root;
989 struct pf_ruleset *pfrkt_rs;
990 long pfrkt_larg;
991 int pfrkt_nflags;
992 };
993 #define pfrkt_t pfrkt_ts.pfrts_t
994 #define pfrkt_name pfrkt_t.pfrt_name
995 #define pfrkt_anchor pfrkt_t.pfrt_anchor
996 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
997 #define pfrkt_flags pfrkt_t.pfrt_flags
998 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
999 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1000 #define pfrkt_packets pfrkt_ts.pfrts_packets
1001 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1002 #define pfrkt_match pfrkt_ts.pfrts_match
1003 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1004 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1005
1006 RB_HEAD(pf_state_tree_lan_ext, pf_state_key);
1007 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state_key,
1008 entry_lan_ext, pf_state_compare_lan_ext);
1009
1010 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
1011 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key,
1012 entry_ext_gwy, pf_state_compare_ext_gwy);
1013
1014 RB_HEAD(pfi_ifhead, pfi_kif);
1015
1016
1017 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext;
1018 extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy;
1019
1020
1021 struct pfi_kif_cmp {
1022 char pfik_name[IFNAMSIZ];
1023 };
1024
1025 struct pfi_kif {
1026 char pfik_name[IFNAMSIZ];
1027 RB_ENTRY(pfi_kif) pfik_tree;
1028 u_int64_t pfik_packets[2][2][2];
1029 u_int64_t pfik_bytes[2][2][2];
1030 u_int32_t pfik_tzero;
1031 int pfik_flags;
1032 void *pfik_ah_cookie;
1033 struct ifnet *pfik_ifp;
1034 struct ifg_group *pfik_group;
1035 int pfik_states;
1036 int pfik_rules;
1037 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1038 };
1039
1040 enum pfi_kif_refs {
1041 PFI_KIF_REF_NONE,
1042 PFI_KIF_REF_STATE,
1043 PFI_KIF_REF_RULE
1044 };
1045
1046 #define PFI_IFLAG_SKIP 0x0100
1047
1048 struct pf_pdesc {
1049 struct {
1050 int done;
1051 uid_t uid;
1052 gid_t gid;
1053 pid_t pid;
1054 } lookup;
1055 u_int64_t tot_len;
1056 union {
1057 struct tcphdr *tcp;
1058 struct udphdr *udp;
1059 struct icmp *icmp;
1060 #ifdef INET6
1061 struct icmp6_hdr *icmp6;
1062 #endif
1063 void *any;
1064 } hdr;
1065 struct pf_addr baddr;
1066 struct pf_addr naddr;
1067 struct pf_rule *nat_rule;
1068 struct pf_addr *src;
1069 struct pf_addr *dst;
1070 struct ether_header
1071 *eh;
1072 u_int16_t *ip_sum;
1073 u_int32_t p_len;
1074 u_int16_t flags;
1075
1076 #define PFDESC_TCP_NORM 0x0001
1077 #define PFDESC_IP_REAS 0x0002
1078 sa_family_t af;
1079 u_int8_t proto;
1080 u_int8_t tos;
1081 };
1082
1083
1084 #define PF_DPORT_RANGE 0x01
1085 #define PF_RPORT_RANGE 0x02
1086
1087
1088 #define PFRES_MATCH 0
1089 #define PFRES_BADOFF 1
1090 #define PFRES_FRAG 2
1091 #define PFRES_SHORT 3
1092 #define PFRES_NORM 4
1093 #define PFRES_MEMORY 5
1094 #define PFRES_TS 6
1095 #define PFRES_CONGEST 7
1096 #define PFRES_IPOPTIONS 8
1097 #define PFRES_PROTCKSUM 9
1098 #define PFRES_BADSTATE 10
1099 #define PFRES_STATEINS 11
1100 #define PFRES_MAXSTATES 12
1101 #define PFRES_SRCLIMIT 13
1102 #define PFRES_SYNPROXY 14
1103 #define PFRES_MAX 15
1104
1105 #define PFRES_NAMES { \
1106 "match", \
1107 "bad-offset", \
1108 "fragment", \
1109 "short", \
1110 "normalize", \
1111 "memory", \
1112 "bad-timestamp", \
1113 "congestion", \
1114 "ip-option", \
1115 "proto-cksum", \
1116 "state-mismatch", \
1117 "state-insert", \
1118 "state-limit", \
1119 "src-limit", \
1120 "synproxy", \
1121 NULL \
1122 }
1123
1124
1125 #define LCNT_STATES 0
1126 #define LCNT_SRCSTATES 1
1127 #define LCNT_SRCNODES 2
1128 #define LCNT_SRCCONN 3
1129 #define LCNT_SRCCONNRATE 4
1130 #define LCNT_OVERLOAD_TABLE 5
1131 #define LCNT_OVERLOAD_FLUSH 6
1132 #define LCNT_MAX 7
1133
1134 #define LCNT_NAMES { \
1135 "max states per rule", \
1136 "max-src-states", \
1137 "max-src-nodes", \
1138 "max-src-conn", \
1139 "max-src-conn-rate", \
1140 "overload table insertion", \
1141 "overload flush states", \
1142 NULL \
1143 }
1144
1145
1146 #define PFUDPS_NO_TRAFFIC 0
1147 #define PFUDPS_SINGLE 1
1148 #define PFUDPS_MULTIPLE 2
1149
1150 #define PFUDPS_NSTATES 3
1151
1152 #define PFUDPS_NAMES { \
1153 "NO_TRAFFIC", \
1154 "SINGLE", \
1155 "MULTIPLE", \
1156 NULL \
1157 }
1158
1159
1160 #define PFOTHERS_NO_TRAFFIC 0
1161 #define PFOTHERS_SINGLE 1
1162 #define PFOTHERS_MULTIPLE 2
1163
1164 #define PFOTHERS_NSTATES 3
1165
1166 #define PFOTHERS_NAMES { \
1167 "NO_TRAFFIC", \
1168 "SINGLE", \
1169 "MULTIPLE", \
1170 NULL \
1171 }
1172
1173 #define FCNT_STATE_SEARCH 0
1174 #define FCNT_STATE_INSERT 1
1175 #define FCNT_STATE_REMOVALS 2
1176 #define FCNT_MAX 3
1177
1178 #define SCNT_SRC_NODE_SEARCH 0
1179 #define SCNT_SRC_NODE_INSERT 1
1180 #define SCNT_SRC_NODE_REMOVALS 2
1181 #define SCNT_MAX 3
1182
1183 #define ACTION_SET(a, x) \
1184 do { \
1185 if ((a) != NULL) \
1186 *(a) = (x); \
1187 } while (0)
1188
1189 #define REASON_SET(a, x) \
1190 do { \
1191 if ((a) != NULL) \
1192 *(a) = (x); \
1193 if (x < PFRES_MAX) \
1194 pf_status.counters[x]++; \
1195 } while (0)
1196
1197 struct pf_status {
1198 u_int64_t counters[PFRES_MAX];
1199 u_int64_t lcounters[LCNT_MAX];
1200 u_int64_t fcounters[FCNT_MAX];
1201 u_int64_t scounters[SCNT_MAX];
1202 u_int64_t pcounters[2][2][3];
1203 u_int64_t bcounters[2][2];
1204 u_int64_t stateid;
1205 u_int32_t running;
1206 u_int32_t states;
1207 u_int32_t src_nodes;
1208 u_int32_t since;
1209 u_int32_t debug;
1210 u_int32_t hostid;
1211 char ifname[IFNAMSIZ];
1212 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1213 };
1214
1215 struct cbq_opts {
1216 u_int minburst;
1217 u_int maxburst;
1218 u_int pktsize;
1219 u_int maxpktsize;
1220 u_int ns_per_byte;
1221 u_int maxidle;
1222 int minidle;
1223 u_int offtime;
1224 int flags;
1225 };
1226
1227 struct priq_opts {
1228 int flags;
1229 };
1230
1231 struct hfsc_opts {
1232
1233 u_int rtsc_m1;
1234 u_int rtsc_d;
1235 u_int rtsc_m2;
1236
1237 u_int lssc_m1;
1238 u_int lssc_d;
1239 u_int lssc_m2;
1240
1241 u_int ulsc_m1;
1242 u_int ulsc_d;
1243 u_int ulsc_m2;
1244 int flags;
1245 };
1246
1247 struct pf_altq {
1248 char ifname[IFNAMSIZ];
1249
1250 void *altq_disc;
1251 TAILQ_ENTRY(pf_altq) entries;
1252
1253
1254 u_int8_t scheduler;
1255 u_int16_t tbrsize;
1256 u_int32_t ifbandwidth;
1257
1258
1259 char qname[PF_QNAME_SIZE];
1260 char parent[PF_QNAME_SIZE];
1261 u_int32_t parent_qid;
1262 u_int32_t bandwidth;
1263 u_int8_t priority;
1264 u_int16_t qlimit;
1265 u_int16_t flags;
1266 union {
1267 struct cbq_opts cbq_opts;
1268 struct priq_opts priq_opts;
1269 struct hfsc_opts hfsc_opts;
1270 } pq_u;
1271
1272 u_int32_t qid;
1273 };
1274
1275 struct pf_tag {
1276 u_int16_t tag;
1277 };
1278
1279 struct pf_tagname {
1280 TAILQ_ENTRY(pf_tagname) entries;
1281 char name[PF_TAG_NAME_SIZE];
1282 u_int16_t tag;
1283 int ref;
1284 };
1285
1286 #define PFFRAG_FRENT_HIWAT 5000
1287 #define PFFRAG_FRAG_HIWAT 1000
1288 #define PFFRAG_FRCENT_HIWAT 50000
1289 #define PFFRAG_FRCACHE_HIWAT 10000
1290
1291 #define PFR_KTABLE_HIWAT 1000
1292 #define PFR_KENTRY_HIWAT 200000
1293 #define PFR_KENTRY_HIWAT_SMALL 100000
1294
1295
1296
1297
1298
1299 struct pfioc_pooladdr {
1300 u_int32_t action;
1301 u_int32_t ticket;
1302 u_int32_t nr;
1303 u_int32_t r_num;
1304 u_int8_t r_action;
1305 u_int8_t r_last;
1306 u_int8_t af;
1307 char anchor[MAXPATHLEN];
1308 struct pf_pooladdr addr;
1309 };
1310
1311 struct pfioc_rule {
1312 u_int32_t action;
1313 u_int32_t ticket;
1314 u_int32_t pool_ticket;
1315 u_int32_t nr;
1316 char anchor[MAXPATHLEN];
1317 char anchor_call[MAXPATHLEN];
1318 struct pf_rule rule;
1319 };
1320
1321 struct pfioc_natlook {
1322 struct pf_addr saddr;
1323 struct pf_addr daddr;
1324 struct pf_addr rsaddr;
1325 struct pf_addr rdaddr;
1326 u_int16_t sport;
1327 u_int16_t dport;
1328 u_int16_t rsport;
1329 u_int16_t rdport;
1330 sa_family_t af;
1331 u_int8_t proto;
1332 u_int8_t direction;
1333 };
1334
1335 struct pfioc_state {
1336 u_int32_t nr;
1337 void *state;
1338 };
1339
1340 struct pfioc_src_node_kill {
1341
1342 sa_family_t psnk_af;
1343 struct pf_rule_addr psnk_src;
1344 struct pf_rule_addr psnk_dst;
1345 };
1346
1347 struct pfioc_state_kill {
1348
1349 sa_family_t psk_af;
1350 int psk_proto;
1351 struct pf_rule_addr psk_src;
1352 struct pf_rule_addr psk_dst;
1353 char psk_ifname[IFNAMSIZ];
1354 };
1355
1356 struct pfioc_states {
1357 int ps_len;
1358 union {
1359 caddr_t psu_buf;
1360 struct pfsync_state *psu_states;
1361 } ps_u;
1362 #define ps_buf ps_u.psu_buf
1363 #define ps_states ps_u.psu_states
1364 };
1365
1366 struct pfioc_src_nodes {
1367 int psn_len;
1368 union {
1369 caddr_t psu_buf;
1370 struct pf_src_node *psu_src_nodes;
1371 } psn_u;
1372 #define psn_buf psn_u.psu_buf
1373 #define psn_src_nodes psn_u.psu_src_nodes
1374 };
1375
1376 struct pfioc_if {
1377 char ifname[IFNAMSIZ];
1378 };
1379
1380 struct pfioc_tm {
1381 int timeout;
1382 int seconds;
1383 };
1384
1385 struct pfioc_limit {
1386 int index;
1387 unsigned limit;
1388 };
1389
1390 struct pfioc_altq {
1391 u_int32_t action;
1392 u_int32_t ticket;
1393 u_int32_t nr;
1394 struct pf_altq altq;
1395 };
1396
1397 struct pfioc_qstats {
1398 u_int32_t ticket;
1399 u_int32_t nr;
1400 void *buf;
1401 int nbytes;
1402 u_int8_t scheduler;
1403 };
1404
1405 struct pfioc_ruleset {
1406 u_int32_t nr;
1407 char path[MAXPATHLEN];
1408 char name[PF_ANCHOR_NAME_SIZE];
1409 };
1410
1411 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1412 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1413 struct pfioc_trans {
1414 int size;
1415 int esize;
1416 struct pfioc_trans_e {
1417 int rs_num;
1418 char anchor[MAXPATHLEN];
1419 u_int32_t ticket;
1420 } *array;
1421 };
1422
1423 #define PFR_FLAG_ATOMIC 0x00000001
1424 #define PFR_FLAG_DUMMY 0x00000002
1425 #define PFR_FLAG_FEEDBACK 0x00000004
1426 #define PFR_FLAG_CLSTATS 0x00000008
1427 #define PFR_FLAG_ADDRSTOO 0x00000010
1428 #define PFR_FLAG_REPLACE 0x00000020
1429 #define PFR_FLAG_ALLRSETS 0x00000040
1430 #define PFR_FLAG_ALLMASK 0x0000007F
1431 #ifdef _KERNEL
1432 #define PFR_FLAG_USERIOCTL 0x10000000
1433 #endif
1434
1435 struct pfioc_table {
1436 struct pfr_table pfrio_table;
1437 void *pfrio_buffer;
1438 int pfrio_esize;
1439 int pfrio_size;
1440 int pfrio_size2;
1441 int pfrio_nadd;
1442 int pfrio_ndel;
1443 int pfrio_nchange;
1444 int pfrio_flags;
1445 u_int32_t pfrio_ticket;
1446 };
1447 #define pfrio_exists pfrio_nadd
1448 #define pfrio_nzero pfrio_nadd
1449 #define pfrio_nmatch pfrio_nadd
1450 #define pfrio_naddr pfrio_size2
1451 #define pfrio_setflag pfrio_size2
1452 #define pfrio_clrflag pfrio_nadd
1453
1454 struct pfioc_iface {
1455 char pfiio_name[IFNAMSIZ];
1456 void *pfiio_buffer;
1457 int pfiio_esize;
1458 int pfiio_size;
1459 int pfiio_nzero;
1460 int pfiio_flags;
1461 };
1462
1463
1464
1465
1466
1467
1468 #define DIOCSTART _IO ('D', 1)
1469 #define DIOCSTOP _IO ('D', 2)
1470 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1471 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1472 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1473
1474 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1475 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1476 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1477 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1478 #define DIOCCLRSTATUS _IO ('D', 22)
1479 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1480 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1481 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1482 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1483
1484 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1485 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1486 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1487 #define DIOCCLRRULECTRS _IO ('D', 38)
1488 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1489 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1490 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1491 #define DIOCSTARTALTQ _IO ('D', 42)
1492 #define DIOCSTOPALTQ _IO ('D', 43)
1493 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1494 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1495 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1496 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1497 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1498 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1499 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1500 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1501 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1502 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1503
1504 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1505 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1506 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1507 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1508 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1509 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1510 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1511 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1512 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1513 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1514 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1515 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1516 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1517 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1518 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1519 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1520 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1521 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1522 #define DIOCOSFPFLUSH _IO('D', 78)
1523 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1524 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1525 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1526 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1527 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1528 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1529 #define DIOCCLRSRCNODES _IO('D', 85)
1530 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1531 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1532 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1533 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1534 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1535
1536 #ifdef _KERNEL
1537 RB_HEAD(pf_src_tree, pf_src_node);
1538 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1539 extern struct pf_src_tree tree_src_tracking;
1540
1541 RB_HEAD(pf_state_tree_id, pf_state);
1542 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1543 entry_id, pf_state_compare_id);
1544 extern struct pf_state_tree_id tree_id;
1545 extern struct pf_state_queue state_list;
1546
1547 TAILQ_HEAD(pf_poolqueue, pf_pool);
1548 extern struct pf_poolqueue pf_pools[2];
1549 TAILQ_HEAD(pf_altqqueue, pf_altq);
1550 extern struct pf_altqqueue pf_altqs[2];
1551 extern struct pf_palist pf_pabuf;
1552
1553 extern u_int32_t ticket_altqs_active;
1554 extern u_int32_t ticket_altqs_inactive;
1555 extern int altqs_inactive_open;
1556 extern u_int32_t ticket_pabuf;
1557 extern struct pf_altqqueue *pf_altqs_active;
1558 extern struct pf_altqqueue *pf_altqs_inactive;
1559 extern struct pf_poolqueue *pf_pools_active;
1560 extern struct pf_poolqueue *pf_pools_inactive;
1561 extern int pf_tbladdr_setup(struct pf_ruleset *,
1562 struct pf_addr_wrap *);
1563 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1564 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1565 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1566 extern struct pool pf_src_tree_pl, pf_rule_pl;
1567 extern struct pool pf_state_pl, pf_state_key_pl, pf_altq_pl,
1568 pf_pooladdr_pl;
1569 extern struct pool pf_state_scrub_pl;
1570 extern void pf_purge_thread(void *);
1571 extern void pf_purge_expired_src_nodes(int);
1572 extern void pf_purge_expired_states(u_int32_t);
1573 extern void pf_unlink_state(struct pf_state *);
1574 extern void pf_free_state(struct pf_state *);
1575 extern int pf_insert_state(struct pfi_kif *,
1576 struct pf_state *);
1577 extern int pf_insert_src_node(struct pf_src_node **,
1578 struct pf_rule *, struct pf_addr *,
1579 sa_family_t);
1580 void pf_src_tree_remove_state(struct pf_state *);
1581 extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
1582 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1583 u_int8_t, int *);
1584 extern void pf_print_state(struct pf_state *);
1585 extern void pf_print_flags(u_int8_t);
1586 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1587 u_int8_t);
1588
1589 extern struct ifnet *sync_ifp;
1590 extern struct pf_rule pf_default_rule;
1591 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1592 u_int8_t);
1593 void pf_rm_rule(struct pf_rulequeue *,
1594 struct pf_rule *);
1595
1596 #ifdef INET
1597 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *);
1598 #endif
1599
1600 #ifdef INET6
1601 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *);
1602 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1603 struct pf_addr *, struct pf_addr *, u_int8_t);
1604 void pf_addr_inc(struct pf_addr *, sa_family_t);
1605 #endif
1606
1607 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1608 sa_family_t);
1609 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1610 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1611 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *,
1612 struct pf_pdesc *);
1613 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1614 struct pf_addr *, sa_family_t);
1615 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1616 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1617 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1618 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1619
1620 void pf_normalize_init(void);
1621 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1622 struct pf_pdesc *);
1623 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1624 struct pf_pdesc *);
1625 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1626 struct pf_pdesc *);
1627 void pf_normalize_tcp_cleanup(struct pf_state *);
1628 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1629 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1630 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1631 u_short *, struct tcphdr *, struct pf_state *,
1632 struct pf_state_peer *, struct pf_state_peer *, int *);
1633 u_int32_t
1634 pf_state_expires(const struct pf_state *);
1635 void pf_purge_expired_fragments(void);
1636 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *);
1637 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *);
1638 int pf_socket_lookup(int, struct pf_pdesc *);
1639 struct pf_state_key *
1640 pf_alloc_state_key(struct pf_state *);
1641 void pfr_initialize(void);
1642 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1643 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1644 u_int64_t, int, int, int);
1645 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1646 struct pf_addr **, struct pf_addr **, sa_family_t);
1647 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1648 struct pfr_ktable *
1649 pfr_attach_table(struct pf_ruleset *, char *);
1650 void pfr_detach_table(struct pfr_ktable *);
1651 int pfr_clr_tables(struct pfr_table *, int *, int);
1652 int pfr_add_tables(struct pfr_table *, int, int *, int);
1653 int pfr_del_tables(struct pfr_table *, int, int *, int);
1654 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1655 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1656 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1657 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1658 int pfr_clr_addrs(struct pfr_table *, int *, int);
1659 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1660 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1661 int);
1662 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1663 int);
1664 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1665 int *, int *, int *, int, u_int32_t);
1666 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1667 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1668 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1669 int);
1670 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1671 int);
1672 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1673 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1674 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1675 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1676 int *, u_int32_t, int);
1677
1678 extern struct pfi_kif *pfi_all;
1679
1680 void pfi_initialize(void);
1681 struct pfi_kif *pfi_kif_get(const char *);
1682 void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
1683 void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
1684 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1685 void pfi_attach_ifnet(struct ifnet *);
1686 void pfi_detach_ifnet(struct ifnet *);
1687 void pfi_attach_ifgroup(struct ifg_group *);
1688 void pfi_detach_ifgroup(struct ifg_group *);
1689 void pfi_group_change(const char *);
1690 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1691 sa_family_t);
1692 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1693 void pfi_dynaddr_remove(struct pf_addr_wrap *);
1694 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1695 void pfi_fill_oldstatus(struct pf_status *);
1696 int pfi_clr_istats(const char *);
1697 int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1698 int pfi_set_flags(const char *, int);
1699 int pfi_clear_flags(const char *, int);
1700
1701 u_int16_t pf_tagname2tag(char *);
1702 void pf_tag2tagname(u_int16_t, char *);
1703 void pf_tag_ref(u_int16_t);
1704 void pf_tag_unref(u_int16_t);
1705 int pf_tag_packet(struct mbuf *, int, int);
1706 u_int32_t pf_qname2qid(char *);
1707 void pf_qid2qname(u_int32_t, char *);
1708 void pf_qid_unref(u_int32_t);
1709
1710 extern struct pf_status pf_status;
1711 extern struct pool pf_frent_pl, pf_frag_pl;
1712 extern struct rwlock pf_consistency_lock;
1713
1714 struct pf_pool_limit {
1715 void *pp;
1716 unsigned limit;
1717 };
1718 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1719
1720 #endif
1721
1722 extern struct pf_anchor_global pf_anchors;
1723 extern struct pf_anchor pf_main_anchor;
1724 #define pf_main_ruleset pf_main_anchor.ruleset
1725
1726
1727 int pf_get_ruleset_number(u_int8_t);
1728 void pf_init_ruleset(struct pf_ruleset *);
1729 int pf_anchor_setup(struct pf_rule *,
1730 const struct pf_ruleset *, const char *);
1731 int pf_anchor_copyout(const struct pf_ruleset *,
1732 const struct pf_rule *, struct pfioc_rule *);
1733 void pf_anchor_remove(struct pf_rule *);
1734 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1735 struct pf_anchor *pf_find_anchor(const char *);
1736 struct pf_ruleset *pf_find_ruleset(const char *);
1737 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1738 void pf_rs_initialize(void);
1739
1740 #ifdef _KERNEL
1741 int pf_anchor_copyout(const struct pf_ruleset *,
1742 const struct pf_rule *, struct pfioc_rule *);
1743 void pf_anchor_remove(struct pf_rule *);
1744
1745 #endif
1746
1747
1748 int pf_osfp_add(struct pf_osfp_ioctl *);
1749 #ifdef _KERNEL
1750 struct pf_osfp_enlist *
1751 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1752 const struct tcphdr *);
1753 #endif
1754 struct pf_osfp_enlist *
1755 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *,
1756 const struct tcphdr *);
1757 void pf_osfp_flush(void);
1758 int pf_osfp_get(struct pf_osfp_ioctl *);
1759 void pf_osfp_initialize(void);
1760 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1761 struct pf_os_fingerprint *
1762 pf_osfp_validate(void);
1763
1764
1765 #endif