2 /* $OpenBSD: pfvar.h,v 1.244 2007/02/23 21:31:51 deraadt Exp $ */
5 * Copyright (c) 2001 Daniel Hartmeier
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * - Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
37 #include <sys/param.h>
38 #include <sys/types.h>
39 #include <sys/queue.h>
45 #include <sys/rwlock.h>
48 #include <net/radix.h>
49 #include <net/route.h>
51 #include <net/if_clone.h>
52 #include <net/pf_mtag.h>
55 #include <netinet/ip_ipsp.h>
59 #include <netinet/in.h>
62 #include <netinet/tcp_fsm.h>
70 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
71 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
73 #define PF_MD5_DIGEST_LENGTH 16
74 #ifdef MD5_DIGEST_LENGTH
75 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
80 enum { PF_INOUT, PF_IN, PF_OUT };
81 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
82 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
83 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
84 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
85 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
86 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
87 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
88 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
89 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
90 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
91 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
92 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
95 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
96 * PFTM_MAX, special cases afterwards. See pf_state_expires().
98 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
99 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
100 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
101 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
102 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
103 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
104 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
105 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
108 /* PFTM default values */
109 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
110 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */
111 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */
112 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */
113 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
114 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
115 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
116 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
117 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
118 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
119 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
120 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
121 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
122 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
123 #define PFTM_FRAG_VAL 30 /* Fragment expire */
124 #define PFTM_INTERVAL_VAL 10 /* Expire interval */
125 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */
126 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
128 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
129 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
130 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
131 #define PF_POOL_IDMASK 0x0f
132 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
133 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
134 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
135 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED };
136 #define PF_POOL_TYPEMASK 0x0f
137 #define PF_POOL_STICKYADDR 0x20
138 #define PF_WSCALE_FLAG 0x80
139 #define PF_WSCALE_MASK 0x0f
142 #define PF_LOG_ALL 0x02
143 #define PF_LOG_SOCKET_LOOKUP 0x04
152 } pfa; /* 128-bit address */
155 #define addr8 pfa.addr8
156 #define addr16 pfa.addr16
157 #define addr32 pfa.addr32
160 #define PF_TABLE_NAME_SIZE 32
162 #define PFI_AFLAG_NETWORK 0x01
163 #define PFI_AFLAG_BROADCAST 0x02
164 #define PFI_AFLAG_PEER 0x04
165 #define PFI_AFLAG_MODEMASK 0x07
166 #define PFI_AFLAG_NOALIAS 0x08
168 struct pf_addr_wrap {
174 char ifname[IFNAMSIZ];
175 char tblname[PF_TABLE_NAME_SIZE];
177 #define RTLABEL_LEN 32
179 char rtlabelname[RTLABEL_LEN];
183 struct pfi_dynaddr *dyn;
184 struct pfr_ktable *tbl;
188 u_int8_t type; /* PF_ADDR_* */
189 u_int8_t iflags; /* PFI_AFLAG_* */
195 TAILQ_ENTRY(pfi_dynaddr) entry;
196 struct pf_addr pfid_addr4;
197 struct pf_addr pfid_mask4;
198 struct pf_addr pfid_addr6;
199 struct pf_addr pfid_mask6;
200 struct pfr_ktable *pfid_kt;
201 struct pfi_kif *pfid_kif;
202 void *pfid_hook_cookie;
203 int pfid_net; /* mask or 128 */
204 int pfid_acnt4; /* address count IPv4 */
205 int pfid_acnt6; /* address count IPv6 */
206 sa_family_t pfid_af; /* rule af */
207 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
211 * Address manipulation macros
215 #define splsoftnet() splnet()
217 #define HTONL(x) (x) = htonl((__uint32_t)(x))
218 #define HTONS(x) (x) = htons((__uint16_t)(x))
219 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
220 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
224 #define PR_NOWAIT M_NOWAIT
225 #define pool_get(p, f) uma_zalloc(*(p), (f))
226 #define pool_put(p, o) uma_zfree(*(p), (o))
228 #define UMA_CREATE(var, type, desc) \
229 var = uma_zcreate(desc, sizeof(type), \
230 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \
231 if (var == NULL) break
232 #define UMA_DESTROY(var) \
233 if(var) uma_zdestroy(var)
235 extern struct mtx pf_task_mtx;
237 #define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h))
239 #define PF_LOCK() do { \
240 PF_ASSERT(MA_NOTOWNED); \
241 mtx_lock(&pf_task_mtx); \
243 #define PF_UNLOCK() do { \
244 PF_ASSERT(MA_OWNED); \
245 mtx_unlock(&pf_task_mtx); \
248 #define PF_COPYIN(uaddr, kaddr, len, r) do { \
250 r = copyin((uaddr), (kaddr), (len)); \
254 #define PF_COPYOUT(kaddr, uaddr, len, r) do { \
256 r = copyout((kaddr), (uaddr), (len)); \
260 extern void init_pf_mutex(void);
261 extern void destroy_pf_mutex(void);
264 #define PFLOG_MODVER 1
265 #define PFSYNC_MODVER 1
267 #define PFLOG_MINVER 1
268 #define PFLOG_PREFVER PFLOG_MODVER
269 #define PFLOG_MAXVER 1
270 #define PFSYNC_MINVER 1
271 #define PFSYNC_PREFVER PFSYNC_MODVER
272 #define PFSYNC_MAXVER 1
273 #endif /* __FreeBSD__ */
283 #define PF_INET6_ONLY
289 #define PF_INET_INET6
295 #define PF_INET_INET6
299 /* Both IPv4 and IPv6 */
302 #define PF_AEQ(a, b, c) \
303 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
304 ((a)->addr32[3] == (b)->addr32[3] && \
305 (a)->addr32[2] == (b)->addr32[2] && \
306 (a)->addr32[1] == (b)->addr32[1] && \
307 (a)->addr32[0] == (b)->addr32[0])) \
309 #define PF_ANEQ(a, b, c) \
310 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
311 ((a)->addr32[3] != (b)->addr32[3] || \
312 (a)->addr32[2] != (b)->addr32[2] || \
313 (a)->addr32[1] != (b)->addr32[1] || \
314 (a)->addr32[0] != (b)->addr32[0])) \
316 #define PF_AZERO(a, c) \
317 ((c == AF_INET && !(a)->addr32[0]) || \
318 (!(a)->addr32[0] && !(a)->addr32[1] && \
319 !(a)->addr32[2] && !(a)->addr32[3] )) \
321 #define PF_MATCHA(n, a, m, b, f) \
322 pf_match_addr(n, a, m, b, f)
324 #define PF_ACPY(a, b, f) \
327 #define PF_AINC(a, f) \
330 #define PF_POOLMASK(a, b, c, d, f) \
331 pf_poolmask(a, b, c, d, f)
339 #define PF_AEQ(a, b, c) \
340 ((a)->addr32[3] == (b)->addr32[3] && \
341 (a)->addr32[2] == (b)->addr32[2] && \
342 (a)->addr32[1] == (b)->addr32[1] && \
343 (a)->addr32[0] == (b)->addr32[0]) \
345 #define PF_ANEQ(a, b, c) \
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]) \
351 #define PF_AZERO(a, c) \
352 (!(a)->addr32[0] && \
357 #define PF_MATCHA(n, a, m, b, f) \
358 pf_match_addr(n, a, m, b, f)
360 #define PF_ACPY(a, b, f) \
363 #define PF_AINC(a, f) \
366 #define PF_POOLMASK(a, b, c, d, f) \
367 pf_poolmask(a, b, c, d, f)
374 #define PF_AEQ(a, b, c) \
375 ((a)->addr32[0] == (b)->addr32[0])
377 #define PF_ANEQ(a, b, c) \
378 ((a)->addr32[0] != (b)->addr32[0])
380 #define PF_AZERO(a, c) \
383 #define PF_MATCHA(n, a, m, b, f) \
384 pf_match_addr(n, a, m, b, f)
386 #define PF_ACPY(a, b, f) \
387 (a)->v4.s_addr = (b)->v4.s_addr
389 #define PF_AINC(a, f) \
391 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
394 #define PF_POOLMASK(a, b, c, d, f) \
396 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
397 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
400 #endif /* PF_INET_ONLY */
401 #endif /* PF_INET6_ONLY */
402 #endif /* PF_INET_INET6 */
404 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
406 (((aw)->type == PF_ADDR_NOROUTE && \
407 pf_routable((x), (af), NULL)) || \
408 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
409 pf_routable((x), (af), (ifp))) || \
410 ((aw)->type == PF_ADDR_RTLABEL && \
411 !pf_rtlabel_match((x), (af), (aw))) || \
412 ((aw)->type == PF_ADDR_TABLE && \
413 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
414 ((aw)->type == PF_ADDR_DYNIFTL && \
415 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
416 ((aw)->type == PF_ADDR_ADDRMASK && \
417 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
418 !PF_MATCHA(0, &(aw)->v.a.addr, \
419 &(aw)->v.a.mask, (x), (af))))) != \
434 struct pf_rule_addr {
435 struct pf_addr_wrap addr;
442 struct pf_addr_wrap addr;
443 TAILQ_ENTRY(pf_pooladdr) entries;
444 char ifname[IFNAMSIZ];
448 TAILQ_HEAD(pf_palist, pf_pooladdr);
450 struct pf_poolhashkey {
455 } pfk; /* 128-bit hash key */
456 #define key8 pfk.key8
457 #define key16 pfk.key16
458 #define key32 pfk.key32
462 struct pf_palist list;
463 struct pf_pooladdr *cur;
464 struct pf_poolhashkey key;
465 struct pf_addr counter;
467 u_int16_t proxy_port[2];
473 /* A packed Operating System description for fingerprinting */
474 typedef u_int32_t pf_osfp_t;
475 #define PF_OSFP_ANY ((pf_osfp_t)0)
476 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
477 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
479 struct pf_osfp_entry {
480 SLIST_ENTRY(pf_osfp_entry) fp_entry;
483 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
484 #define PF_OSFP_GENERIC 0x002 /* generic signature */
485 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
486 #define PF_OSFP_LEN 32
487 char fp_class_nm[PF_OSFP_LEN];
488 char fp_version_nm[PF_OSFP_LEN];
489 char fp_subtype_nm[PF_OSFP_LEN];
491 #define PF_OSFP_ENTRY_EQ(a, b) \
492 ((a)->fp_os == (b)->fp_os && \
493 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
494 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
495 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
497 /* handle pf_osfp_t packing */
498 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
499 #define _FP_UNUSED_BITS 1
500 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
501 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
502 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
503 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
504 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
505 ((1 << _FP_CLASS_BITS) - 1); \
506 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
507 ((1 << _FP_VERSION_BITS) - 1);\
508 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
510 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
511 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
512 + _FP_SUBTYPE_BITS); \
513 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
515 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
518 /* the fingerprint of an OSes TCP SYN packet */
519 typedef u_int64_t pf_tcpopts_t;
520 struct pf_os_fingerprint {
521 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
522 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
523 u_int16_t fp_wsize; /* TCP window size */
524 u_int16_t fp_psize; /* ip->ip_len */
525 u_int16_t fp_mss; /* TCP MSS */
527 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
528 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
529 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
530 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
531 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
532 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
533 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
534 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
535 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
536 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
537 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
538 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
539 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
540 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
541 #define PF_OSFP_INET6 0x4000 /* IPv6 */
542 u_int8_t fp_optcnt; /* TCP option count */
543 u_int8_t fp_wscale; /* TCP window scaling */
544 u_int8_t fp_ttl; /* IPv4 TTL */
545 #define PF_OSFP_MAXTTL_OFFSET 40
546 /* TCP options packing */
547 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
548 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
549 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
550 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
551 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
552 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
553 #define PF_OSFP_MAX_OPTS \
554 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
555 / PF_OSFP_TCPOPT_BITS
557 SLIST_ENTRY(pf_os_fingerprint) fp_next;
560 struct pf_osfp_ioctl {
561 struct pf_osfp_entry fp_os;
562 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
563 u_int16_t fp_wsize; /* TCP window size */
564 u_int16_t fp_psize; /* ip->ip_len */
565 u_int16_t fp_mss; /* TCP MSS */
567 u_int8_t fp_optcnt; /* TCP option count */
568 u_int8_t fp_wscale; /* TCP window scaling */
569 u_int8_t fp_ttl; /* IPv4 TTL */
571 int fp_getnum; /* DIOCOSFPGET number */
580 #define PF_ANCHOR_NAME_SIZE 64
583 struct pf_rule_addr src;
584 struct pf_rule_addr dst;
585 #define PF_SKIP_IFP 0
586 #define PF_SKIP_DIR 1
588 #define PF_SKIP_PROTO 3
589 #define PF_SKIP_SRC_ADDR 4
590 #define PF_SKIP_SRC_PORT 5
591 #define PF_SKIP_DST_ADDR 6
592 #define PF_SKIP_DST_PORT 7
593 #define PF_SKIP_COUNT 8
594 union pf_rule_ptr skip[PF_SKIP_COUNT];
595 #define PF_RULE_LABEL_SIZE 64
596 char label[PF_RULE_LABEL_SIZE];
597 #define PF_QNAME_SIZE 64
598 char ifname[IFNAMSIZ];
599 char qname[PF_QNAME_SIZE];
600 char pqname[PF_QNAME_SIZE];
601 #define PF_TAG_NAME_SIZE 64
602 char tagname[PF_TAG_NAME_SIZE];
603 char match_tagname[PF_TAG_NAME_SIZE];
605 char overload_tblname[PF_TABLE_NAME_SIZE];
607 TAILQ_ENTRY(pf_rule) entries;
608 struct pf_pool rpool;
610 u_int64_t evaluations;
611 u_int64_t packets[2];
615 struct pf_anchor *anchor;
616 struct pfr_ktable *overload_tbl;
618 pf_osfp_t os_fingerprint;
621 u_int32_t timeout[PFTM_MAX];
623 u_int32_t max_states;
625 u_int32_t max_src_nodes;
626 u_int32_t max_src_states;
627 u_int32_t spare1; /* netgraph */
628 u_int32_t max_src_conn;
641 u_int16_t return_icmp;
642 u_int16_t return_icmp6;
646 u_int16_t spare2; /* netgraph */
648 struct pf_rule_uid uid;
649 struct pf_rule_gid gid;
658 u_int8_t match_tag_not;
661 #define PF_STATE_NORMAL 0x1
662 #define PF_STATE_MODULATE 0x2
663 #define PF_STATE_SYNPROXY 0x3
676 u_int8_t anchor_relative;
677 u_int8_t anchor_wildcard;
679 #define PF_FLUSH 0x01
680 #define PF_FLUSH_GLOBAL 0x02
685 #define PFRULE_DROP 0x0000
686 #define PFRULE_RETURNRST 0x0001
687 #define PFRULE_FRAGMENT 0x0002
688 #define PFRULE_RETURNICMP 0x0004
689 #define PFRULE_RETURN 0x0008
690 #define PFRULE_NOSYNC 0x0010
691 #define PFRULE_SRCTRACK 0x0020 /* track source states */
692 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
695 #define PFRULE_NODF 0x0100
696 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
697 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
698 #define PFRULE_RANDOMID 0x0800
699 #define PFRULE_REASSEMBLE_TCP 0x1000
701 /* rule flags again */
702 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
704 #define PFSTATE_HIWAT 10000 /* default state table size */
705 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
706 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
709 struct pf_threshold {
711 #define PF_THRESHOLD_MULT 1000
712 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
719 RB_ENTRY(pf_src_node) entry;
721 struct pf_addr raddr;
722 union pf_rule_ptr rule;
725 u_int64_t packets[2];
728 struct pf_threshold conn_rate;
735 #define PFSNODE_HIWAT 10000 /* default source node table size */
737 struct pf_state_scrub {
738 struct timeval pfss_last; /* time received last packet */
739 u_int32_t pfss_tsecr; /* last echoed timestamp */
740 u_int32_t pfss_tsval; /* largest timestamp */
741 u_int32_t pfss_tsval0; /* original timestamp */
742 u_int16_t pfss_flags;
743 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
744 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
745 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
746 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
747 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
748 u_int8_t pfss_ttl; /* stashed TTL */
750 u_int32_t pfss_ts_mod; /* timestamp modulation */
753 struct pf_state_host {
759 struct pf_state_peer {
760 u_int32_t seqlo; /* Max sequence number sent */
761 u_int32_t seqhi; /* Max the other end ACKd + win */
762 u_int32_t seqdiff; /* Sequence number modulator */
763 u_int16_t max_win; /* largest window (pre scaling) */
764 u_int8_t state; /* active state level */
765 u_int8_t wscale; /* window scaling factor */
766 u_int16_t mss; /* Maximum segment size option */
767 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
768 struct pf_state_scrub *scrub; /* state is scrubbed */
772 TAILQ_HEAD(pf_state_queue, pf_state);
774 /* keep synced with struct pf_state, used in RB_FIND */
775 struct pf_state_cmp {
778 struct pf_state_host lan;
779 struct pf_state_host gwy;
780 struct pf_state_host ext;
790 struct pf_state_host lan;
791 struct pf_state_host gwy;
792 struct pf_state_host ext;
797 u_int8_t local_flags;
798 #define PFSTATE_EXPIRING 0x01
806 #define PFSTATE_NOSYNC 0x01
807 #define PFSTATE_FROMSYNC 0x02
808 #define PFSTATE_STALE 0x04
811 RB_ENTRY(pf_state) entry_lan_ext;
812 RB_ENTRY(pf_state) entry_ext_gwy;
813 RB_ENTRY(pf_state) entry_id;
814 TAILQ_ENTRY(pf_state) entry_list;
817 char ifname[IFNAMSIZ];
819 struct pf_state_peer src;
820 struct pf_state_peer dst;
821 union pf_rule_ptr rule;
822 union pf_rule_ptr anchor;
823 union pf_rule_ptr nat_rule;
824 struct pf_addr rt_addr;
825 struct pfi_kif *rt_kif;
826 struct pf_src_node *src_node;
827 struct pf_src_node *nat_src_node;
828 u_int64_t packets[2];
832 u_int32_t pfsync_time;
836 TAILQ_HEAD(pf_rulequeue, pf_rule);
842 struct pf_rulequeue queues[2];
844 struct pf_rulequeue *ptr;
845 struct pf_rule **ptr_array;
850 } rules[PF_RULESET_MAX];
851 struct pf_anchor *anchor;
857 RB_HEAD(pf_anchor_global, pf_anchor);
858 RB_HEAD(pf_anchor_node, pf_anchor);
860 RB_ENTRY(pf_anchor) entry_global;
861 RB_ENTRY(pf_anchor) entry_node;
862 struct pf_anchor *parent;
863 struct pf_anchor_node children;
864 char name[PF_ANCHOR_NAME_SIZE];
865 char path[MAXPATHLEN];
866 struct pf_ruleset ruleset;
867 int refcnt; /* anchor rules */
870 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
871 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
873 #define PF_RESERVED_ANCHOR "_pf"
875 #define PFR_TFLAG_PERSIST 0x00000001
876 #define PFR_TFLAG_CONST 0x00000002
877 #define PFR_TFLAG_ACTIVE 0x00000004
878 #define PFR_TFLAG_INACTIVE 0x00000008
879 #define PFR_TFLAG_REFERENCED 0x00000010
880 #define PFR_TFLAG_REFDANCHOR 0x00000020
881 #define PFR_TFLAG_USRMASK 0x00000003
882 #define PFR_TFLAG_SETMASK 0x0000003C
883 #define PFR_TFLAG_ALLMASK 0x0000003F
886 char pfrt_anchor[MAXPATHLEN];
887 char pfrt_name[PF_TABLE_NAME_SIZE];
888 u_int32_t pfrt_flags;
892 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
893 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
894 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
898 struct in_addr _pfra_ip4addr;
899 struct in6_addr _pfra_ip6addr;
906 #define pfra_ip4addr pfra_u._pfra_ip4addr
907 #define pfra_ip6addr pfra_u._pfra_ip6addr
909 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
910 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
911 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
914 struct pfr_addr pfras_a;
915 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
916 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
920 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
923 struct pfr_table pfrts_t;
924 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
925 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
926 u_int64_t pfrts_match;
927 u_int64_t pfrts_nomatch;
930 int pfrts_refcnt[PFR_REFCNT_MAX];
932 #define pfrts_name pfrts_t.pfrt_name
933 #define pfrts_flags pfrts_t.pfrt_flags
935 #ifndef _SOCKADDR_UNION_DEFINED
936 #define _SOCKADDR_UNION_DEFINED
937 union sockaddr_union {
939 struct sockaddr_in sin;
940 struct sockaddr_in6 sin6;
942 #endif /* _SOCKADDR_UNION_DEFINED */
944 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
946 struct radix_node pfrke_node[2];
947 union sockaddr_union pfrke_sa;
948 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
949 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
950 SLIST_ENTRY(pfr_kentry) pfrke_workq;
956 u_int8_t pfrke_intrpool;
959 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
960 RB_HEAD(pfr_ktablehead, pfr_ktable);
962 struct pfr_tstats pfrkt_ts;
963 RB_ENTRY(pfr_ktable) pfrkt_tree;
964 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
965 struct radix_node_head *pfrkt_ip4;
966 struct radix_node_head *pfrkt_ip6;
967 struct pfr_ktable *pfrkt_shadow;
968 struct pfr_ktable *pfrkt_root;
969 struct pf_ruleset *pfrkt_rs;
973 #define pfrkt_t pfrkt_ts.pfrts_t
974 #define pfrkt_name pfrkt_t.pfrt_name
975 #define pfrkt_anchor pfrkt_t.pfrt_anchor
976 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
977 #define pfrkt_flags pfrkt_t.pfrt_flags
978 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
979 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
980 #define pfrkt_packets pfrkt_ts.pfrts_packets
981 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
982 #define pfrkt_match pfrkt_ts.pfrts_match
983 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
984 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
986 RB_HEAD(pf_state_tree_lan_ext, pf_state);
987 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state,
988 u.s.entry_lan_ext, pf_state_compare_lan_ext);
990 RB_HEAD(pf_state_tree_ext_gwy, pf_state);
991 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state,
992 u.s.entry_ext_gwy, pf_state_compare_ext_gwy);
994 TAILQ_HEAD(pfi_statehead, pfi_kif);
995 RB_HEAD(pfi_ifhead, pfi_kif);
997 /* keep synced with pfi_kif, used in RB_FIND */
999 char pfik_name[IFNAMSIZ];
1003 char pfik_name[IFNAMSIZ];
1004 RB_ENTRY(pfi_kif) pfik_tree;
1005 u_int64_t pfik_packets[2][2][2];
1006 u_int64_t pfik_bytes[2][2][2];
1007 u_int32_t pfik_tzero;
1009 struct pf_state_tree_lan_ext pfik_lan_ext;
1010 struct pf_state_tree_ext_gwy pfik_ext_gwy;
1011 TAILQ_ENTRY(pfi_kif) pfik_w_states;
1013 void *pfik_ah_cookie;
1015 struct ifnet *pfik_ifp;
1016 struct ifg_group *pfik_group;
1019 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1028 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1030 #define PFI_IFLAG_SETABLE_MASK 0x0100 /* setable via DIOC{SET,CLR}IFFLAG */
1031 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */
1040 u_int64_t tot_len; /* Make Mickey money */
1046 struct icmp6_hdr *icmp6;
1050 struct pf_addr baddr; /* address before translation */
1051 struct pf_addr naddr; /* address after translation */
1052 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1053 struct pf_addr *src;
1054 struct pf_addr *dst;
1057 struct pf_mtag *pf_mtag;
1059 u_int32_t p_len; /* total length of payload */
1060 u_int16_t flags; /* Let SCRUB trigger behavior in
1061 * state code. Easier than tags */
1062 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1063 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1069 /* flags for RDR options */
1070 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1071 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1073 /* Reasons code for passing/dropping a packet */
1074 #define PFRES_MATCH 0 /* Explicit match of a rule */
1075 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1076 #define PFRES_FRAG 2 /* Dropping following fragment */
1077 #define PFRES_SHORT 3 /* Dropping short packet */
1078 #define PFRES_NORM 4 /* Dropping by normalizer */
1079 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1080 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1081 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1082 #define PFRES_IPOPTIONS 8 /* IP option */
1083 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1084 #define PFRES_BADSTATE 10 /* State mismatch */
1085 #define PFRES_STATEINS 11 /* State insertion failure */
1086 #define PFRES_MAXSTATES 12 /* State limit */
1087 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1088 #define PFRES_SYNPROXY 14 /* SYN proxy */
1089 #define PFRES_MAX 15 /* total+1 */
1091 #define PFRES_NAMES { \
1110 /* Counters for other things we want to keep track of */
1111 #define LCNT_STATES 0 /* states */
1112 #define LCNT_SRCSTATES 1 /* max-src-states */
1113 #define LCNT_SRCNODES 2 /* max-src-nodes */
1114 #define LCNT_SRCCONN 3 /* max-src-conn */
1115 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1116 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1117 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1118 #define LCNT_MAX 7 /* total+1 */
1120 #define LCNT_NAMES { \
1121 "max states per rule", \
1125 "max-src-conn-rate", \
1126 "overload table insertion", \
1127 "overload flush states", \
1131 /* UDP state enumeration */
1132 #define PFUDPS_NO_TRAFFIC 0
1133 #define PFUDPS_SINGLE 1
1134 #define PFUDPS_MULTIPLE 2
1136 #define PFUDPS_NSTATES 3 /* number of state levels */
1138 #define PFUDPS_NAMES { \
1145 /* Other protocol state enumeration */
1146 #define PFOTHERS_NO_TRAFFIC 0
1147 #define PFOTHERS_SINGLE 1
1148 #define PFOTHERS_MULTIPLE 2
1150 #define PFOTHERS_NSTATES 3 /* number of state levels */
1152 #define PFOTHERS_NAMES { \
1159 #define FCNT_STATE_SEARCH 0
1160 #define FCNT_STATE_INSERT 1
1161 #define FCNT_STATE_REMOVALS 2
1164 #define SCNT_SRC_NODE_SEARCH 0
1165 #define SCNT_SRC_NODE_INSERT 1
1166 #define SCNT_SRC_NODE_REMOVALS 2
1169 #define ACTION_SET(a, x) \
1175 #define REASON_SET(a, x) \
1179 if (x < PFRES_MAX) \
1180 pf_status.counters[x]++; \
1184 u_int64_t counters[PFRES_MAX];
1185 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1186 u_int64_t fcounters[FCNT_MAX];
1187 u_int64_t scounters[SCNT_MAX];
1188 u_int64_t pcounters[2][2][3];
1189 u_int64_t bcounters[2][2];
1193 u_int32_t src_nodes;
1197 char ifname[IFNAMSIZ];
1198 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1218 /* real-time service curve */
1219 u_int rtsc_m1; /* slope of the 1st segment in bps */
1220 u_int rtsc_d; /* the x-projection of m1 in msec */
1221 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1222 /* link-sharing service curve */
1226 /* upper-limit service curve */
1234 char ifname[IFNAMSIZ];
1236 void *altq_disc; /* discipline-specific state */
1237 TAILQ_ENTRY(pf_altq) entries;
1239 /* scheduler spec */
1240 u_int8_t scheduler; /* scheduler type */
1241 u_int16_t tbrsize; /* tokenbucket regulator size */
1242 u_int32_t ifbandwidth; /* interface bandwidth */
1245 char qname[PF_QNAME_SIZE]; /* queue name */
1246 char parent[PF_QNAME_SIZE]; /* parent name */
1247 u_int32_t parent_qid; /* parent queue id */
1248 u_int32_t bandwidth; /* queue bandwidth */
1249 u_int8_t priority; /* priority */
1251 u_int8_t local_flags; /* dynamic interface */
1252 #define PFALTQ_FLAG_IF_REMOVED 0x01
1254 u_int16_t qlimit; /* queue size limit */
1255 u_int16_t flags; /* misc flags */
1257 struct cbq_opts cbq_opts;
1258 struct priq_opts priq_opts;
1259 struct hfsc_opts hfsc_opts;
1262 u_int32_t qid; /* return value */
1267 #define PF_TAG_GENERATED 0x01
1268 #define PF_TAG_FRAGCACHE 0x02
1269 #define PF_TAG_TRANSLATE_LOCALHOST 0x04
1272 void *hdr; /* saved hdr pos in mbuf, for ECN */
1273 u_int rtableid; /* alternate routing table id */
1274 u_int32_t qid; /* queue id */
1275 u_int16_t tag; /* tag id */
1278 sa_family_t af; /* for ECN */
1283 u_int16_t tag; /* tag id */
1287 TAILQ_ENTRY(pf_tagname) entries;
1288 char name[PF_TAG_NAME_SIZE];
1293 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1294 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1295 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1296 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1298 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1299 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1300 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1303 * ioctl parameter structures
1306 struct pfioc_pooladdr {
1314 char anchor[MAXPATHLEN];
1315 struct pf_pooladdr addr;
1321 u_int32_t pool_ticket;
1323 char anchor[MAXPATHLEN];
1324 char anchor_call[MAXPATHLEN];
1325 struct pf_rule rule;
1328 struct pfioc_natlook {
1329 struct pf_addr saddr;
1330 struct pf_addr daddr;
1331 struct pf_addr rsaddr;
1332 struct pf_addr rdaddr;
1342 struct pfioc_state {
1344 struct pf_state state;
1347 struct pfioc_src_node_kill {
1348 /* XXX returns the number of src nodes killed in psnk_af */
1349 sa_family_t psnk_af;
1350 struct pf_rule_addr psnk_src;
1351 struct pf_rule_addr psnk_dst;
1354 struct pfioc_state_kill {
1355 /* XXX returns the number of states killed in psk_af */
1358 struct pf_rule_addr psk_src;
1359 struct pf_rule_addr psk_dst;
1360 char psk_ifname[IFNAMSIZ];
1363 struct pfioc_states {
1367 struct pf_state *psu_states;
1369 #define ps_buf ps_u.psu_buf
1370 #define ps_states ps_u.psu_states
1373 struct pfioc_src_nodes {
1377 struct pf_src_node *psu_src_nodes;
1379 #define psn_buf psn_u.psu_buf
1380 #define psn_src_nodes psn_u.psu_src_nodes
1384 char ifname[IFNAMSIZ];
1392 struct pfioc_limit {
1401 struct pf_altq altq;
1404 struct pfioc_qstats {
1412 struct pfioc_ruleset {
1414 char path[MAXPATHLEN];
1415 char name[PF_ANCHOR_NAME_SIZE];
1418 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1419 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1420 struct pfioc_trans {
1421 int size; /* number of elements */
1422 int esize; /* size of each element in bytes */
1423 struct pfioc_trans_e {
1425 char anchor[MAXPATHLEN];
1430 #define PFR_FLAG_ATOMIC 0x00000001
1431 #define PFR_FLAG_DUMMY 0x00000002
1432 #define PFR_FLAG_FEEDBACK 0x00000004
1433 #define PFR_FLAG_CLSTATS 0x00000008
1434 #define PFR_FLAG_ADDRSTOO 0x00000010
1435 #define PFR_FLAG_REPLACE 0x00000020
1436 #define PFR_FLAG_ALLRSETS 0x00000040
1437 #define PFR_FLAG_ALLMASK 0x0000007F
1439 #define PFR_FLAG_USERIOCTL 0x10000000
1442 struct pfioc_table {
1443 struct pfr_table pfrio_table;
1452 u_int32_t pfrio_ticket;
1454 #define pfrio_exists pfrio_nadd
1455 #define pfrio_nzero pfrio_nadd
1456 #define pfrio_nmatch pfrio_nadd
1457 #define pfrio_naddr pfrio_size2
1458 #define pfrio_setflag pfrio_size2
1459 #define pfrio_clrflag pfrio_nadd
1461 struct pfioc_iface {
1462 char pfiio_name[IFNAMSIZ];
1475 #define DIOCSTART _IO ('D', 1)
1476 #define DIOCSTOP _IO ('D', 2)
1477 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1478 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1479 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1480 /* XXX cut 8 - 17 */
1481 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1482 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1483 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1484 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1485 #define DIOCCLRSTATUS _IO ('D', 22)
1486 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1487 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1488 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1489 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1490 /* XXX cut 26 - 28 */
1491 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1492 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1493 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1494 #define DIOCCLRRULECTRS _IO ('D', 38)
1495 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1496 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1497 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1498 #define DIOCSTARTALTQ _IO ('D', 42)
1499 #define DIOCSTOPALTQ _IO ('D', 43)
1500 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1501 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1502 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1503 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1504 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1505 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1506 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1507 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1508 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1509 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1510 /* XXX cut 55 - 57 */
1511 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1512 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1513 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1514 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1515 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1516 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1517 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1518 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1519 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1520 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1521 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1522 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1523 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1524 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1525 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1526 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1527 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1528 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1529 #define DIOCOSFPFLUSH _IO('D', 78)
1530 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1531 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1532 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1533 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1534 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1535 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1536 #define DIOCCLRSRCNODES _IO('D', 85)
1537 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1538 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1539 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1540 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1541 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1544 char ifname[IFNAMSIZ];
1547 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1551 RB_HEAD(pf_src_tree, pf_src_node);
1552 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1553 extern struct pf_src_tree tree_src_tracking;
1555 RB_HEAD(pf_state_tree_id, pf_state);
1556 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1557 entry_id, pf_state_compare_id);
1558 extern struct pf_state_tree_id tree_id;
1559 extern struct pf_state_queue state_list;
1561 TAILQ_HEAD(pf_poolqueue, pf_pool);
1562 extern struct pf_poolqueue pf_pools[2];
1563 TAILQ_HEAD(pf_altqqueue, pf_altq);
1564 extern struct pf_altqqueue pf_altqs[2];
1565 extern struct pf_palist pf_pabuf;
1567 extern u_int32_t ticket_altqs_active;
1568 extern u_int32_t ticket_altqs_inactive;
1569 extern int altqs_inactive_open;
1570 extern u_int32_t ticket_pabuf;
1571 extern struct pf_altqqueue *pf_altqs_active;
1572 extern struct pf_altqqueue *pf_altqs_inactive;
1573 extern struct pf_poolqueue *pf_pools_active;
1574 extern struct pf_poolqueue *pf_pools_inactive;
1575 extern int pf_tbladdr_setup(struct pf_ruleset *,
1576 struct pf_addr_wrap *);
1577 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1578 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1579 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1582 extern void pf_altq_ifnet_event(struct ifnet *, int);
1584 extern uma_zone_t pf_src_tree_pl, pf_rule_pl;
1585 extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1586 extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl, pfr_kentry_pl2;
1587 extern uma_zone_t pf_cache_pl, pf_cent_pl;
1588 extern uma_zone_t pf_state_scrub_pl;
1589 extern uma_zone_t pfi_addr_pl;
1591 extern struct pool pf_src_tree_pl, pf_rule_pl;
1592 extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1593 extern struct pool pf_state_scrub_pl;
1595 extern void pf_purge_thread(void *);
1597 extern int pf_purge_expired_src_nodes(int);
1598 extern int pf_purge_expired_states(u_int32_t, int);
1600 extern void pf_purge_expired_src_nodes(int);
1601 extern void pf_purge_expired_states(u_int32_t);
1603 extern void pf_unlink_state(struct pf_state *);
1604 extern void pf_free_state(struct pf_state *);
1605 extern int pf_insert_state(struct pfi_kif *,
1607 extern int pf_insert_src_node(struct pf_src_node **,
1608 struct pf_rule *, struct pf_addr *,
1610 void pf_src_tree_remove_state(struct pf_state *);
1611 extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
1612 extern struct pf_state *pf_find_state_all(struct pf_state_cmp *key,
1613 u_int8_t tree, int *more);
1614 extern void pf_print_state(struct pf_state *);
1615 extern void pf_print_flags(u_int8_t);
1616 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1619 extern struct ifnet *sync_ifp;
1620 extern struct pf_rule pf_default_rule;
1621 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1623 void pf_rm_rule(struct pf_rulequeue *,
1628 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *,
1631 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *);
1637 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *,
1640 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *);
1642 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1643 struct pf_addr *, struct pf_addr *, u_int8_t);
1644 void pf_addr_inc(struct pf_addr *, sa_family_t);
1648 u_int32_t pf_new_isn(struct pf_state *);
1650 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1652 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1653 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1654 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *,
1656 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1657 struct pf_addr *, sa_family_t);
1658 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1659 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1660 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1661 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1663 void pf_normalize_init(void);
1664 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1666 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1668 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1670 void pf_normalize_tcp_cleanup(struct pf_state *);
1671 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1672 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1673 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1674 u_short *, struct tcphdr *, struct pf_state *,
1675 struct pf_state_peer *, struct pf_state_peer *, int *);
1677 pf_state_expires(const struct pf_state *);
1678 void pf_purge_expired_fragments(void);
1679 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *);
1680 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *);
1682 int pf_socket_lookup(int, struct pf_pdesc *, struct inpcb *);
1684 int pf_socket_lookup(int, struct pf_pdesc *);
1686 void pfr_initialize(void);
1687 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1688 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1689 u_int64_t, int, int, int);
1690 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1691 struct pf_addr **, struct pf_addr **, sa_family_t);
1692 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1694 pfr_attach_table(struct pf_ruleset *, char *);
1695 void pfr_detach_table(struct pfr_ktable *);
1696 int pfr_clr_tables(struct pfr_table *, int *, int);
1697 int pfr_add_tables(struct pfr_table *, int, int *, int);
1698 int pfr_del_tables(struct pfr_table *, int, int *, int);
1699 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1700 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1701 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1702 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1703 int pfr_clr_addrs(struct pfr_table *, int *, int);
1704 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1705 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1707 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1709 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1710 int *, int *, int *, int, u_int32_t);
1711 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1712 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1713 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1715 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1717 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1718 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1719 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1720 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1721 int *, u_int32_t, int);
1723 extern struct pfi_statehead pfi_statehead;
1724 extern struct pfi_kif *pfi_all;
1726 void pfi_initialize(void);
1728 void pfi_cleanup(void);
1730 struct pfi_kif *pfi_kif_get(const char *);
1731 void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
1732 void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
1733 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1734 void pfi_attach_ifnet(struct ifnet *);
1735 void pfi_detach_ifnet(struct ifnet *);
1736 void pfi_attach_ifgroup(struct ifg_group *);
1737 void pfi_detach_ifgroup(struct ifg_group *);
1738 void pfi_group_change(const char *);
1739 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1741 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1742 void pfi_dynaddr_remove(struct pf_addr_wrap *);
1743 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1744 void pfi_fill_oldstatus(struct pf_status *);
1745 int pfi_clr_istats(const char *);
1746 int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1747 int pfi_set_flags(const char *, int);
1748 int pfi_clear_flags(const char *, int);
1750 u_int16_t pf_tagname2tag(char *);
1751 void pf_tag2tagname(u_int16_t, char *);
1752 void pf_tag_ref(u_int16_t);
1753 void pf_tag_unref(u_int16_t);
1754 int pf_tag_packet(struct mbuf *, struct pf_mtag *, int, int);
1755 u_int32_t pf_qname2qid(char *);
1756 void pf_qid2qname(u_int32_t, char *);
1757 void pf_qid_unref(u_int32_t);
1759 struct pf_mtag *pf_find_mtag(struct mbuf *);
1760 struct pf_mtag *pf_get_mtag(struct mbuf *);
1763 extern struct pf_status pf_status;
1766 extern uma_zone_t pf_frent_pl, pf_frag_pl;
1767 extern struct sx pf_consistency_lock;
1769 extern struct pool pf_frent_pl, pf_frag_pl;
1770 extern struct rwlock pf_consistency_lock;
1773 struct pf_pool_limit {
1777 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1781 LIST_ENTRY(pf_frent) fr_next;
1787 LIST_ENTRY(pf_frcache) fr_next;
1792 struct pf_fragment {
1793 RB_ENTRY(pf_fragment) fr_entry;
1794 TAILQ_ENTRY(pf_fragment) frag_next;
1795 struct in_addr fr_src;
1796 struct in_addr fr_dst;
1797 u_int8_t fr_p; /* protocol of this fragment */
1798 u_int8_t fr_flags; /* status flags */
1799 u_int16_t fr_id; /* fragment id for reassemble */
1800 u_int16_t fr_max; /* fragment data max */
1801 u_int32_t fr_timeout;
1802 #define fr_queue fr_u.fru_queue
1803 #define fr_cache fr_u.fru_cache
1805 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
1806 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
1809 #endif /* (__FreeBSD__) */
1811 #endif /* _KERNEL */
1813 extern struct pf_anchor_global pf_anchors;
1814 extern struct pf_anchor pf_main_anchor;
1815 #define pf_main_ruleset pf_main_anchor.ruleset
1817 /* these ruleset functions can be linked into userland programs (pfctl) */
1818 int pf_get_ruleset_number(u_int8_t);
1819 void pf_init_ruleset(struct pf_ruleset *);
1820 int pf_anchor_setup(struct pf_rule *,
1821 const struct pf_ruleset *, const char *);
1822 int pf_anchor_copyout(const struct pf_ruleset *,
1823 const struct pf_rule *, struct pfioc_rule *);
1824 void pf_anchor_remove(struct pf_rule *);
1825 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1826 struct pf_anchor *pf_find_anchor(const char *);
1827 struct pf_ruleset *pf_find_ruleset(const char *);
1828 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1829 void pf_rs_initialize(void);
1834 int pf_anchor_copyout(const struct pf_ruleset *,
1835 const struct pf_rule *, struct pfioc_rule *);
1836 void pf_anchor_remove(struct pf_rule *);
1838 #endif /* _KERNEL */
1841 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1842 int pf_osfp_add(struct pf_osfp_ioctl *);
1844 struct pf_osfp_enlist *
1845 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1846 const struct tcphdr *);
1847 #endif /* _KERNEL */
1848 struct pf_osfp_enlist *
1849 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *,
1850 const struct tcphdr *);
1851 void pf_osfp_flush(void);
1852 int pf_osfp_get(struct pf_osfp_ioctl *);
1854 int pf_osfp_initialize(void);
1855 void pf_osfp_cleanup(void);
1857 void pf_osfp_initialize(void);
1859 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1860 struct pf_os_fingerprint *
1861 pf_osfp_validate(void);
1863 #endif /* _NET_PFVAR_H_ */