1 /* $FreeBSD: src/sys/contrib/pf/net/pfvar.h,v 1.8 2004/08/12 13:59:44 mlaier Exp $ */
2 /* $OpenBSD: pfvar.h,v 1.187 2004/03/22 04:54:18 mcbride Exp $ */
3 /* add $OpenBSD: pfvar.h,v 1.194 2004/05/11 07:34:11 dhartmei Exp $ */
4 /* $DragonFly: src/sys/net/pf/pfvar.h,v 1.8 2008/04/11 18:21:48 dillon Exp $ */
5 /* $OpenBSD: pfvar.h,v 1.244 2007/02/23 21:31:51 deraadt Exp $ */
8 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
10 * Copyright (c) 2001 Daniel Hartmeier
11 * All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * - Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
34 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
42 #include <sys/param.h>
43 #include <sys/types.h>
44 #include <sys/limits.h>
45 #include <sys/ioccom.h>
46 #include <sys/queue.h>
50 #include <net/radix.h>
51 #include <net/if_clone.h>
52 #include <netinet/in.h>
53 #include <netinet/in_pcb.h>
56 #include <vm/vm_zone.h>
61 * If we include <netipsec/keydb.h>, we need _KERNEL definition.
62 * This makes pfctl compilation difficult.
64 union sockaddr_union {
66 struct sockaddr_in sin;
67 struct sockaddr_in6 sin6;
70 #include <netinet/tcp_fsm.h>
75 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
76 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
79 #define RTLABEL_LEN 32
80 #define IFG_ALL "all" /* group contains all interfaces */
81 #define BPF_DIRECTION_OUT (1<<1)
84 #define ALTQ_IS_ENABLED(ifq) ((ifq)->altq_flags & ALTQF_ENABLED)
87 #define PF_MD5_DIGEST_LENGTH 16
88 #ifdef MD5_DIGEST_LENGTH
89 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
94 enum { PF_INOUT, PF_IN, PF_OUT };
95 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
96 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
97 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
98 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
99 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
100 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
101 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
102 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
103 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
104 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
105 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
106 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
109 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
110 * PFTM_MAX, special cases afterwards. See pf_state_expires().
112 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
113 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
114 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
115 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
116 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
117 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
118 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
119 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
122 /* PFTM default values */
123 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
124 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */
125 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */
126 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */
127 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
128 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
129 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
130 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
131 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
132 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
133 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
134 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
135 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
136 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
137 #define PFTM_FRAG_VAL 30 /* Fragment expire */
138 #define PFTM_INTERVAL_VAL 10 /* Expire interval */
139 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */
140 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
142 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
143 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
144 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
145 #define PF_POOL_IDMASK 0x0f
146 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
147 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
148 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
149 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED };
150 #define PF_POOL_TYPEMASK 0x0f
151 #define PF_POOL_STICKYADDR 0x20
152 #define PF_WSCALE_FLAG 0x80
153 #define PF_WSCALE_MASK 0x0f
156 #define PF_LOG_ALL 0x02
157 #define PF_LOG_SOCKET_LOOKUP 0x04
166 } pfa; /* 128-bit address */
169 #define addr8 pfa.addr8
170 #define addr16 pfa.addr16
171 #define addr32 pfa.addr32
174 #define PF_TABLE_NAME_SIZE 32
176 #define PFI_AFLAG_NETWORK 0x01
177 #define PFI_AFLAG_BROADCAST 0x02
178 #define PFI_AFLAG_PEER 0x04
179 #define PFI_AFLAG_MODEMASK 0x07
180 #define PFI_AFLAG_NOALIAS 0x08
182 struct pf_addr_wrap {
188 char ifname[IFNAMSIZ];
189 char tblname[PF_TABLE_NAME_SIZE];
190 char rtlabelname[RTLABEL_LEN];
194 struct pfi_dynaddr *dyn;
195 struct pfr_ktable *tbl;
199 u_int8_t type; /* PF_ADDR_* */
200 u_int8_t iflags; /* PFI_AFLAG_* */
206 TAILQ_ENTRY(pfi_dynaddr) entry;
207 struct pf_addr pfid_addr4;
208 struct pf_addr pfid_mask4;
209 struct pf_addr pfid_addr6;
210 struct pf_addr pfid_mask6;
211 struct pfr_ktable *pfid_kt;
212 struct pfi_kif *pfid_kif;
213 void *pfid_hook_cookie;
214 int pfid_net; /* mask or 128 */
215 int pfid_acnt4; /* address count IPv4 */
216 int pfid_acnt6; /* address count IPv6 */
217 sa_family_t pfid_af; /* rule af */
218 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
222 * Address manipulation macros
225 /* XXX correct values for zinit? */
226 #define ZONE_CREATE(var, type, desc) \
227 var = zinit(desc, sizeof(type), 1, ZONE_DESTROYABLE, 1); \
228 if (var == NULL) break
229 #define ZONE_DESTROY(a) zdestroy(a)
231 #define pool_get(p, f) zalloc(*(p))
232 #define pool_put(p, o) zfree(*(p), (o))
234 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
235 #define HTONS(x) (x) = htons((__uint16_t)(x))
240 #define PFLOG_MODVER 1
241 #define PFSYNC_MODVER 1
243 #define PFLOG_MINVER 1
244 #define PFLOG_PREFVER PFLOG_MODVER
245 #define PFLOG_MAXVER 1
246 #define PFSYNC_MINVER 1
247 #define PFSYNC_PREFVER PFSYNC_MODVER
248 #define PFSYNC_MAXVER 1
250 /* prototyped for pf_subr.c */
252 TAILQ_ENTRY(hook_desc) hd_list;
253 void (*hd_fn)(void *);
256 TAILQ_HEAD(hook_desc_head, hook_desc);
258 void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *);
259 void hook_disestablish(struct hook_desc_head *, void *);
260 void dohooks(struct hook_desc_head *, int);
262 #define HOOK_REMOVE 0x01
263 #define HOOK_FREE 0x02
273 #define PF_INET6_ONLY
279 #define PF_INET_INET6
285 #define PF_INET_INET6
289 /* Both IPv4 and IPv6 */
292 #define PF_AEQ(a, b, c) \
293 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
294 ((a)->addr32[3] == (b)->addr32[3] && \
295 (a)->addr32[2] == (b)->addr32[2] && \
296 (a)->addr32[1] == (b)->addr32[1] && \
297 (a)->addr32[0] == (b)->addr32[0])) \
299 #define PF_ANEQ(a, b, c) \
300 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
301 ((a)->addr32[3] != (b)->addr32[3] || \
302 (a)->addr32[2] != (b)->addr32[2] || \
303 (a)->addr32[1] != (b)->addr32[1] || \
304 (a)->addr32[0] != (b)->addr32[0])) \
306 #define PF_AZERO(a, c) \
307 ((c == AF_INET && !(a)->addr32[0]) || \
308 (!(a)->addr32[0] && !(a)->addr32[1] && \
309 !(a)->addr32[2] && !(a)->addr32[3] )) \
311 #define PF_MATCHA(n, a, m, b, f) \
312 pf_match_addr(n, a, m, b, f)
314 #define PF_ACPY(a, b, f) \
317 #define PF_AINC(a, f) \
320 #define PF_POOLMASK(a, b, c, d, f) \
321 pf_poolmask(a, b, c, d, f)
329 #define PF_AEQ(a, b, c) \
330 ((a)->addr32[3] == (b)->addr32[3] && \
331 (a)->addr32[2] == (b)->addr32[2] && \
332 (a)->addr32[1] == (b)->addr32[1] && \
333 (a)->addr32[0] == (b)->addr32[0]) \
335 #define PF_ANEQ(a, b, c) \
336 ((a)->addr32[3] != (b)->addr32[3] || \
337 (a)->addr32[2] != (b)->addr32[2] || \
338 (a)->addr32[1] != (b)->addr32[1] || \
339 (a)->addr32[0] != (b)->addr32[0]) \
341 #define PF_AZERO(a, c) \
342 (!(a)->addr32[0] && \
347 #define PF_MATCHA(n, a, m, b, f) \
348 pf_match_addr(n, a, m, b, f)
350 #define PF_ACPY(a, b, f) \
353 #define PF_AINC(a, f) \
356 #define PF_POOLMASK(a, b, c, d, f) \
357 pf_poolmask(a, b, c, d, f)
364 #define PF_AEQ(a, b, c) \
365 ((a)->addr32[0] == (b)->addr32[0])
367 #define PF_ANEQ(a, b, c) \
368 ((a)->addr32[0] != (b)->addr32[0])
370 #define PF_AZERO(a, c) \
373 #define PF_MATCHA(n, a, m, b, f) \
374 pf_match_addr(n, a, m, b, f)
376 #define PF_ACPY(a, b, f) \
377 (a)->v4.s_addr = (b)->v4.s_addr
379 #define PF_AINC(a, f) \
381 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
384 #define PF_POOLMASK(a, b, c, d, f) \
386 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
387 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
390 #endif /* PF_INET_ONLY */
391 #endif /* PF_INET6_ONLY */
392 #endif /* PF_INET_INET6 */
394 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
396 (((aw)->type == PF_ADDR_NOROUTE && \
397 pf_routable((x), (af), NULL)) || \
398 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
399 pf_routable((x), (af), (ifp))) || \
400 ((aw)->type == PF_ADDR_RTLABEL && \
401 !pf_rtlabel_match((x), (af), (aw))) || \
402 ((aw)->type == PF_ADDR_TABLE && \
403 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
404 ((aw)->type == PF_ADDR_DYNIFTL && \
405 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
406 ((aw)->type == PF_ADDR_ADDRMASK && \
407 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
408 !PF_MATCHA(0, &(aw)->v.a.addr, \
409 &(aw)->v.a.mask, (x), (af))))) != \
424 struct pf_rule_addr {
425 struct pf_addr_wrap addr;
432 struct pf_addr_wrap addr;
433 TAILQ_ENTRY(pf_pooladdr) entries;
434 char ifname[IFNAMSIZ];
438 TAILQ_HEAD(pf_palist, pf_pooladdr);
440 struct pf_poolhashkey {
445 } pfk; /* 128-bit hash key */
446 #define key8 pfk.key8
447 #define key16 pfk.key16
448 #define key32 pfk.key32
452 struct pf_palist list;
453 struct pf_pooladdr *cur;
454 struct pf_poolhashkey key;
455 struct pf_addr counter;
457 u_int16_t proxy_port[2];
463 /* A packed Operating System description for fingerprinting */
464 typedef u_int32_t pf_osfp_t;
465 #define PF_OSFP_ANY ((pf_osfp_t)0)
466 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
467 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
469 struct pf_osfp_entry {
470 SLIST_ENTRY(pf_osfp_entry) fp_entry;
473 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
474 #define PF_OSFP_GENERIC 0x002 /* generic signature */
475 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
476 #define PF_OSFP_LEN 32
477 char fp_class_nm[PF_OSFP_LEN];
478 char fp_version_nm[PF_OSFP_LEN];
479 char fp_subtype_nm[PF_OSFP_LEN];
481 #define PF_OSFP_ENTRY_EQ(a, b) \
482 ((a)->fp_os == (b)->fp_os && \
483 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
484 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
485 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
487 /* handle pf_osfp_t packing */
488 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
489 #define _FP_UNUSED_BITS 1
490 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
491 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
492 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
493 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
494 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
495 ((1 << _FP_CLASS_BITS) - 1); \
496 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
497 ((1 << _FP_VERSION_BITS) - 1);\
498 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
500 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
501 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
502 + _FP_SUBTYPE_BITS); \
503 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
505 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
508 /* the fingerprint of an OSes TCP SYN packet */
509 typedef u_int64_t pf_tcpopts_t;
510 struct pf_os_fingerprint {
511 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
512 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
513 u_int16_t fp_wsize; /* TCP window size */
514 u_int16_t fp_psize; /* ip->ip_len */
515 u_int16_t fp_mss; /* TCP MSS */
517 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
518 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
519 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
520 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
521 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
522 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
523 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
524 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
525 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
526 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
527 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
528 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
529 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
530 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
531 #define PF_OSFP_INET6 0x4000 /* IPv6 */
532 u_int8_t fp_optcnt; /* TCP option count */
533 u_int8_t fp_wscale; /* TCP window scaling */
534 u_int8_t fp_ttl; /* IPv4 TTL */
535 #define PF_OSFP_MAXTTL_OFFSET 40
536 /* TCP options packing */
537 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
538 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
539 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
540 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
541 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
542 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
543 #define PF_OSFP_MAX_OPTS \
544 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
545 / PF_OSFP_TCPOPT_BITS
547 SLIST_ENTRY(pf_os_fingerprint) fp_next;
550 struct pf_osfp_ioctl {
551 struct pf_osfp_entry fp_os;
552 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
553 u_int16_t fp_wsize; /* TCP window size */
554 u_int16_t fp_psize; /* ip->ip_len */
555 u_int16_t fp_mss; /* TCP MSS */
557 u_int8_t fp_optcnt; /* TCP option count */
558 u_int8_t fp_wscale; /* TCP window scaling */
559 u_int8_t fp_ttl; /* IPv4 TTL */
561 int fp_getnum; /* DIOCOSFPGET number */
570 #define PF_ANCHOR_NAME_SIZE 64
573 struct pf_rule_addr src;
574 struct pf_rule_addr dst;
575 #define PF_SKIP_IFP 0
576 #define PF_SKIP_DIR 1
578 #define PF_SKIP_PROTO 3
579 #define PF_SKIP_SRC_ADDR 4
580 #define PF_SKIP_SRC_PORT 5
581 #define PF_SKIP_DST_ADDR 6
582 #define PF_SKIP_DST_PORT 7
583 #define PF_SKIP_COUNT 8
584 union pf_rule_ptr skip[PF_SKIP_COUNT];
585 #define PF_RULE_LABEL_SIZE 64
586 char label[PF_RULE_LABEL_SIZE];
587 #define PF_QNAME_SIZE 64
588 char ifname[IFNAMSIZ];
589 char qname[PF_QNAME_SIZE];
590 char pqname[PF_QNAME_SIZE];
591 #define PF_TAG_NAME_SIZE 64
592 char tagname[PF_TAG_NAME_SIZE];
593 char match_tagname[PF_TAG_NAME_SIZE];
595 char overload_tblname[PF_TABLE_NAME_SIZE];
597 TAILQ_ENTRY(pf_rule) entries;
598 struct pf_pool rpool;
600 u_int64_t evaluations;
601 u_int64_t packets[2];
605 struct pf_anchor *anchor;
606 struct pfr_ktable *overload_tbl;
608 pf_osfp_t os_fingerprint;
611 u_int32_t timeout[PFTM_MAX];
613 u_int32_t max_states;
615 u_int32_t max_src_nodes;
616 u_int32_t max_src_states;
617 u_int32_t max_src_conn;
630 u_int16_t return_icmp;
631 u_int16_t return_icmp6;
636 struct pf_rule_uid uid;
637 struct pf_rule_gid gid;
646 u_int8_t match_tag_not;
649 #define PF_STATE_NORMAL 0x1
650 #define PF_STATE_MODULATE 0x2
651 #define PF_STATE_SYNPROXY 0x3
664 u_int8_t anchor_relative;
665 u_int8_t anchor_wildcard;
667 #define PF_FLUSH 0x01
668 #define PF_FLUSH_GLOBAL 0x02
671 #define PF_PICKUPS_UNSPECIFIED 0
672 #define PF_PICKUPS_DISABLED 1
673 #define PF_PICKUPS_HASHONLY 2
674 #define PF_PICKUPS_ENABLED 3
675 u_int8_t pickup_mode;
676 u_int8_t unused01; /* available for use */
680 #define PFRULE_DROP 0x0000
681 #define PFRULE_RETURNRST 0x0001
682 #define PFRULE_FRAGMENT 0x0002
683 #define PFRULE_RETURNICMP 0x0004
684 #define PFRULE_RETURN 0x0008
685 #define PFRULE_NOSYNC 0x0010
686 #define PFRULE_SRCTRACK 0x0020 /* track source states */
687 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
690 #define PFRULE_NODF 0x0100
691 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
692 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
693 #define PFRULE_RANDOMID 0x0800
694 #define PFRULE_REASSEMBLE_TCP 0x1000
696 /* rule flags again */
697 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
699 #define PFSTATE_HIWAT 10000 /* default state table size */
700 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
701 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
704 struct pf_threshold {
706 #define PF_THRESHOLD_MULT 1000
707 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
714 RB_ENTRY(pf_src_node) entry;
716 struct pf_addr raddr;
717 union pf_rule_ptr rule;
720 u_int64_t packets[2];
723 struct pf_threshold conn_rate;
730 #define PFSNODE_HIWAT 10000 /* default source node table size */
732 struct pf_state_scrub {
733 struct timeval pfss_last; /* time received last packet */
734 u_int32_t pfss_tsecr; /* last echoed timestamp */
735 u_int32_t pfss_tsval; /* largest timestamp */
736 u_int32_t pfss_tsval0; /* original timestamp */
737 u_int16_t pfss_flags;
738 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
739 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
740 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
741 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
742 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
743 u_int8_t pfss_ttl; /* stashed TTL */
745 u_int32_t pfss_ts_mod; /* timestamp modulation */
748 struct pf_state_host {
754 struct pf_state_peer {
755 u_int32_t seqlo; /* Max sequence number sent */
756 u_int32_t seqhi; /* Max the other end ACKd + win */
757 u_int32_t seqdiff; /* Sequence number modulator */
758 u_int16_t max_win; /* largest window (pre scaling) */
759 u_int8_t state; /* active state level */
760 u_int8_t wscale; /* window scaling factor */
761 u_int16_t mss; /* Maximum segment size option */
762 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
763 struct pf_state_scrub *scrub; /* state is scrubbed */
767 TAILQ_HEAD(pf_state_queue, pf_state);
769 /* keep synced with struct pf_state, used in RB_FIND */
770 struct pf_state_cmp {
773 struct pf_state_host lan;
774 struct pf_state_host gwy;
775 struct pf_state_host ext;
785 struct pf_state_host lan;
786 struct pf_state_host gwy;
787 struct pf_state_host ext;
796 u_int8_t pickup_mode;
797 #define PFSTATE_NOSYNC 0x01
798 #define PFSTATE_FROMSYNC 0x02
799 #define PFSTATE_STALE 0x04
800 #define PFSTATE_GOT_SYN1 0x04 /* got SYN in one direction */
801 #define PFSTATE_GOT_SYN2 0x08 /* got SYN in the other direction */
804 RB_ENTRY(pf_state) entry_lan_ext;
805 RB_ENTRY(pf_state) entry_ext_gwy;
806 RB_ENTRY(pf_state) entry_id;
807 TAILQ_ENTRY(pf_state) entry_list;
810 char ifname[IFNAMSIZ];
812 struct pf_state_peer src;
813 struct pf_state_peer dst;
814 union pf_rule_ptr rule;
815 union pf_rule_ptr anchor;
816 union pf_rule_ptr nat_rule;
817 struct pf_addr rt_addr;
818 struct pfi_kif *rt_kif;
819 struct pf_src_node *src_node;
820 struct pf_src_node *nat_src_node;
821 u_int64_t packets[2];
826 u_int32_t pfsync_time;
830 #define PFSTATE_GOT_SYN_MASK (PFSTATE_GOT_SYN1|PFSTATE_GOT_SYN2)
832 TAILQ_HEAD(pf_rulequeue, pf_rule);
838 struct pf_rulequeue queues[2];
840 struct pf_rulequeue *ptr;
841 struct pf_rule **ptr_array;
846 } rules[PF_RULESET_MAX];
847 struct pf_anchor *anchor;
853 RB_HEAD(pf_anchor_global, pf_anchor);
854 RB_HEAD(pf_anchor_node, pf_anchor);
856 RB_ENTRY(pf_anchor) entry_global;
857 RB_ENTRY(pf_anchor) entry_node;
858 struct pf_anchor *parent;
859 struct pf_anchor_node children;
860 char name[PF_ANCHOR_NAME_SIZE];
861 char path[MAXPATHLEN];
862 struct pf_ruleset ruleset;
863 int refcnt; /* anchor rules */
866 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
867 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
869 #define PF_RESERVED_ANCHOR "_pf"
871 #define PFR_TFLAG_PERSIST 0x00000001
872 #define PFR_TFLAG_CONST 0x00000002
873 #define PFR_TFLAG_ACTIVE 0x00000004
874 #define PFR_TFLAG_INACTIVE 0x00000008
875 #define PFR_TFLAG_REFERENCED 0x00000010
876 #define PFR_TFLAG_REFDANCHOR 0x00000020
877 #define PFR_TFLAG_USRMASK 0x00000003
878 #define PFR_TFLAG_SETMASK 0x0000003C
879 #define PFR_TFLAG_ALLMASK 0x0000003F
882 char pfrt_anchor[MAXPATHLEN];
883 char pfrt_name[PF_TABLE_NAME_SIZE];
884 u_int32_t pfrt_flags;
888 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
889 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
890 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
894 struct in_addr _pfra_ip4addr;
895 struct in6_addr _pfra_ip6addr;
902 #define pfra_ip4addr pfra_u._pfra_ip4addr
903 #define pfra_ip6addr pfra_u._pfra_ip6addr
905 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
906 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
907 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
910 struct pfr_addr pfras_a;
911 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
912 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
916 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
919 struct pfr_table pfrts_t;
920 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
921 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
922 u_int64_t pfrts_match;
923 u_int64_t pfrts_nomatch;
926 int pfrts_refcnt[PFR_REFCNT_MAX];
928 #define pfrts_name pfrts_t.pfrt_name
929 #define pfrts_flags pfrts_t.pfrt_flags
931 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
933 struct radix_node pfrke_node[2];
934 union sockaddr_union pfrke_sa;
935 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
936 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
937 SLIST_ENTRY(pfr_kentry) pfrke_workq;
943 u_int8_t pfrke_intrpool;
946 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
947 RB_HEAD(pfr_ktablehead, pfr_ktable);
949 struct pfr_tstats pfrkt_ts;
950 RB_ENTRY(pfr_ktable) pfrkt_tree;
951 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
952 struct radix_node_head *pfrkt_ip4;
953 struct radix_node_head *pfrkt_ip6;
954 struct pfr_ktable *pfrkt_shadow;
955 struct pfr_ktable *pfrkt_root;
956 struct pf_ruleset *pfrkt_rs;
960 #define pfrkt_t pfrkt_ts.pfrts_t
961 #define pfrkt_name pfrkt_t.pfrt_name
962 #define pfrkt_anchor pfrkt_t.pfrt_anchor
963 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
964 #define pfrkt_flags pfrkt_t.pfrt_flags
965 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
966 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
967 #define pfrkt_packets pfrkt_ts.pfrts_packets
968 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
969 #define pfrkt_match pfrkt_ts.pfrts_match
970 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
971 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
973 RB_HEAD(pf_state_tree_lan_ext, pf_state);
974 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state,
975 u.s.entry_lan_ext, pf_state_compare_lan_ext);
977 RB_HEAD(pf_state_tree_ext_gwy, pf_state);
978 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state,
979 u.s.entry_ext_gwy, pf_state_compare_ext_gwy);
982 char pfif_name[IFNAMSIZ];
983 u_int64_t pfif_packets[2][2][2];
984 u_int64_t pfif_bytes[2][2][2];
985 u_int64_t pfif_addcnt;
986 u_int64_t pfif_delcnt;
993 TAILQ_HEAD(pfi_grouphead, pfi_kif);
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_ifname[IFNAMSIZ];
1003 struct pfi_if pfik_if;
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 struct pfi_grouphead pfik_grouphead;
1012 TAILQ_ENTRY(pfi_kif) pfik_instances;
1013 TAILQ_ENTRY(pfi_kif) pfik_w_states;
1014 struct hook_desc_head *pfik_ah_head;
1015 void *pfik_ah_cookie;
1016 struct pfi_kif *pfik_parent;
1017 struct ifnet *pfik_ifp;
1018 struct ifg_group *pfik_group;
1021 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1023 #define pfik_name pfik_if.pfif_name
1024 #define pfik_packets pfik_if.pfif_packets
1025 #define pfik_bytes pfik_if.pfif_bytes
1026 #define pfik_tzero pfik_if.pfif_tzero
1027 #define pfik_flags pfik_if.pfif_flags
1028 #define pfik_addcnt pfik_if.pfif_addcnt
1029 #define pfik_delcnt pfik_if.pfif_delcnt
1030 #define pfik_states pfik_if.pfif_states
1031 #define pfik_rules pfik_if.pfif_rules
1039 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */
1040 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */
1041 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */
1042 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */
1043 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1044 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */
1053 u_int64_t tot_len; /* Make Mickey money */
1059 struct icmp6_hdr *icmp6;
1063 struct pf_addr baddr; /* address before translation */
1064 struct pf_addr naddr; /* address after translation */
1065 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1066 struct pf_addr *src;
1067 struct pf_addr *dst;
1070 struct pf_mtag *pf_mtag;
1072 u_int32_t p_len; /* total length of payload */
1073 u_int16_t flags; /* Let SCRUB trigger behavior in
1074 * state code. Easier than tags */
1075 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1076 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1082 /* flags for RDR options */
1083 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1084 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1086 /* Reasons code for passing/dropping a packet */
1087 #define PFRES_MATCH 0 /* Explicit match of a rule */
1088 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1089 #define PFRES_FRAG 2 /* Dropping following fragment */
1090 #define PFRES_SHORT 3 /* Dropping short packet */
1091 #define PFRES_NORM 4 /* Dropping by normalizer */
1092 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1093 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1094 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1095 #define PFRES_IPOPTIONS 8 /* IP option */
1096 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1097 #define PFRES_BADSTATE 10 /* State mismatch */
1098 #define PFRES_STATEINS 11 /* State insertion failure */
1099 #define PFRES_MAXSTATES 12 /* State limit */
1100 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1101 #define PFRES_SYNPROXY 14 /* SYN proxy */
1102 #define PFRES_MAX 15 /* total+1 */
1104 #define PFRES_NAMES { \
1123 /* Counters for other things we want to keep track of */
1124 #define LCNT_STATES 0 /* states */
1125 #define LCNT_SRCSTATES 1 /* max-src-states */
1126 #define LCNT_SRCNODES 2 /* max-src-nodes */
1127 #define LCNT_SRCCONN 3 /* max-src-conn */
1128 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1129 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1130 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1131 #define LCNT_MAX 7 /* total+1 */
1133 #define LCNT_NAMES { \
1134 "max states per rule", \
1138 "max-src-conn-rate", \
1139 "overload table insertion", \
1140 "overload flush states", \
1144 /* UDP state enumeration */
1145 #define PFUDPS_NO_TRAFFIC 0
1146 #define PFUDPS_SINGLE 1
1147 #define PFUDPS_MULTIPLE 2
1149 #define PFUDPS_NSTATES 3 /* number of state levels */
1151 #define PFUDPS_NAMES { \
1158 /* Other protocol state enumeration */
1159 #define PFOTHERS_NO_TRAFFIC 0
1160 #define PFOTHERS_SINGLE 1
1161 #define PFOTHERS_MULTIPLE 2
1163 #define PFOTHERS_NSTATES 3 /* number of state levels */
1165 #define PFOTHERS_NAMES { \
1172 #define FCNT_STATE_SEARCH 0
1173 #define FCNT_STATE_INSERT 1
1174 #define FCNT_STATE_REMOVALS 2
1177 #define SCNT_SRC_NODE_SEARCH 0
1178 #define SCNT_SRC_NODE_INSERT 1
1179 #define SCNT_SRC_NODE_REMOVALS 2
1182 #define ACTION_SET(a, x) \
1188 #define REASON_SET(a, x) \
1192 if (x < PFRES_MAX) \
1193 pf_status.counters[x]++; \
1197 u_int64_t counters[PFRES_MAX];
1198 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1199 u_int64_t fcounters[FCNT_MAX];
1200 u_int64_t scounters[SCNT_MAX];
1201 u_int64_t pcounters[2][2][3];
1202 u_int64_t bcounters[2][2];
1206 u_int32_t src_nodes;
1210 char ifname[IFNAMSIZ];
1211 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1231 /* real-time service curve */
1232 u_int rtsc_m1; /* slope of the 1st segment in bps */
1233 u_int rtsc_d; /* the x-projection of m1 in msec */
1234 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1235 /* link-sharing service curve */
1239 /* upper-limit service curve */
1247 * XXX this needs some work
1250 u_int nbuckets; /* hash buckets */
1251 u_int hogs_m1; /* hog detection bandwidth */
1254 /* link-sharing service curve */
1261 char ifname[IFNAMSIZ];
1263 void *altq_disc; /* discipline-specific state */
1264 TAILQ_ENTRY(pf_altq) entries;
1266 /* scheduler spec */
1267 u_int8_t scheduler; /* scheduler type */
1268 u_int16_t tbrsize; /* tokenbucket regulator size */
1269 u_int32_t ifbandwidth; /* interface bandwidth */
1272 char qname[PF_QNAME_SIZE]; /* queue name */
1273 char parent[PF_QNAME_SIZE]; /* parent name */
1274 u_int32_t parent_qid; /* parent queue id */
1275 u_int32_t bandwidth; /* queue bandwidth */
1276 u_int8_t priority; /* priority */
1277 u_int16_t qlimit; /* queue size limit */
1278 u_int16_t flags; /* misc flags */
1280 struct cbq_opts cbq_opts;
1281 struct priq_opts priq_opts;
1282 struct hfsc_opts hfsc_opts;
1283 struct fairq_opts fairq_opts;
1286 u_int32_t qid; /* return value */
1289 #define PF_TAG_GENERATED 0x01
1290 #define PF_TAG_FRAGCACHE 0x02
1291 #define PF_TAG_TRANSLATE_LOCALHOST 0x04
1292 #define PF_TAG_STATE_HASHED 0x08
1295 void *hdr; /* saved hdr pos in mbuf, for ECN */
1296 u_int rtableid; /* alternate routing table id */
1297 u_int32_t qid; /* queue id */
1298 u_int16_t tag; /* tag id */
1301 sa_family_t af; /* for ECN */
1302 u_int32_t state_hash; /* for fairq */
1306 u_int16_t tag; /* tag id */
1310 TAILQ_ENTRY(pf_tagname) entries;
1311 char name[PF_TAG_NAME_SIZE];
1316 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1317 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1318 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1319 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1321 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1322 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1323 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1326 * ioctl parameter structures
1329 struct pfioc_pooladdr {
1337 char anchor[MAXPATHLEN];
1338 struct pf_pooladdr addr;
1344 u_int32_t pool_ticket;
1346 char anchor[MAXPATHLEN];
1347 char anchor_call[MAXPATHLEN];
1348 struct pf_rule rule;
1351 struct pfioc_natlook {
1352 struct pf_addr saddr;
1353 struct pf_addr daddr;
1354 struct pf_addr rsaddr;
1355 struct pf_addr rdaddr;
1365 struct pfioc_state {
1367 struct pf_state state;
1370 struct pfioc_src_node_kill {
1371 /* XXX returns the number of src nodes killed in psnk_af */
1372 sa_family_t psnk_af;
1373 struct pf_rule_addr psnk_src;
1374 struct pf_rule_addr psnk_dst;
1377 struct pfioc_state_kill {
1378 /* XXX returns the number of states killed in psk_af */
1381 struct pf_rule_addr psk_src;
1382 struct pf_rule_addr psk_dst;
1383 char psk_ifname[IFNAMSIZ];
1386 struct pfioc_states {
1390 struct pf_state *psu_states;
1392 #define ps_buf ps_u.psu_buf
1393 #define ps_states ps_u.psu_states
1396 struct pfioc_src_nodes {
1400 struct pf_src_node *psu_src_nodes;
1402 #define psn_buf psn_u.psu_buf
1403 #define psn_src_nodes psn_u.psu_src_nodes
1407 char ifname[IFNAMSIZ];
1415 struct pfioc_limit {
1424 struct pf_altq altq;
1427 struct pfioc_qstats {
1435 struct pfioc_anchor {
1437 char name[PF_ANCHOR_NAME_SIZE];
1440 struct pfioc_ruleset {
1442 char path[MAXPATHLEN];
1443 char name[PF_ANCHOR_NAME_SIZE];
1446 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1447 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1448 struct pfioc_trans {
1449 int size; /* number of elements */
1450 int esize; /* size of each element in bytes */
1451 struct pfioc_trans_e {
1453 char anchor[MAXPATHLEN];
1458 #define PFR_FLAG_ATOMIC 0x00000001
1459 #define PFR_FLAG_DUMMY 0x00000002
1460 #define PFR_FLAG_FEEDBACK 0x00000004
1461 #define PFR_FLAG_CLSTATS 0x00000008
1462 #define PFR_FLAG_ADDRSTOO 0x00000010
1463 #define PFR_FLAG_REPLACE 0x00000020
1464 #define PFR_FLAG_ALLRSETS 0x00000040
1465 #define PFR_FLAG_ALLMASK 0x0000007F
1467 #define PFR_FLAG_USERIOCTL 0x10000000
1470 struct pfioc_table {
1471 struct pfr_table pfrio_table;
1480 u_int32_t pfrio_ticket;
1482 #define pfrio_exists pfrio_nadd
1483 #define pfrio_nzero pfrio_nadd
1484 #define pfrio_nmatch pfrio_nadd
1485 #define pfrio_naddr pfrio_size2
1486 #define pfrio_setflag pfrio_size2
1487 #define pfrio_clrflag pfrio_nadd
1489 struct pfioc_iface {
1490 char pfiio_name[IFNAMSIZ];
1503 #define DIOCSTART _IO ('D', 1)
1504 #define DIOCSTOP _IO ('D', 2)
1505 #define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule)
1506 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1507 #define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule)
1508 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1509 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1510 /* XXX cut 8 - 17 */
1511 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1512 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1513 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1514 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1515 #define DIOCCLRSTATUS _IO ('D', 22)
1516 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1517 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1518 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1519 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1520 /* XXX cut 26 - 28 */
1521 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1522 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1523 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1524 #define DIOCCLRRULECTRS _IO ('D', 38)
1525 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1526 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1527 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1528 #define DIOCSTARTALTQ _IO ('D', 42)
1529 #define DIOCSTOPALTQ _IO ('D', 43)
1530 #define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t)
1531 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1532 #define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t)
1533 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1534 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1535 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1536 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1537 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1538 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1539 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1540 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1541 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1542 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1543 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1544 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1545 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1546 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1547 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1548 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1549 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1550 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1551 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1552 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1553 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1554 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1555 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1556 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1557 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1558 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1559 #define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table)
1560 #define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table)
1561 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1562 #define DIOCOSFPFLUSH _IO('D', 78)
1563 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1564 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1565 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1566 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1567 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1568 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1569 #define DIOCCLRSRCNODES _IO('D', 85)
1570 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1571 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1572 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface)
1573 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1574 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1575 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1577 char ifname[IFNAMSIZ];
1580 #define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed)
1583 RB_HEAD(pf_src_tree, pf_src_node);
1584 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1585 extern struct pf_src_tree tree_src_tracking;
1587 RB_HEAD(pf_state_tree_id, pf_state);
1588 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1589 entry_id, pf_state_compare_id);
1590 extern struct pf_state_tree_id tree_id;
1591 extern struct pf_state_queue state_list;
1593 TAILQ_HEAD(pf_poolqueue, pf_pool);
1594 extern struct pf_poolqueue pf_pools[2];
1595 TAILQ_HEAD(pf_altqqueue, pf_altq);
1596 extern struct pf_altqqueue pf_altqs[2];
1597 extern struct pf_palist pf_pabuf;
1599 extern u_int32_t ticket_altqs_active;
1600 extern u_int32_t ticket_altqs_inactive;
1601 extern int altqs_inactive_open;
1602 extern u_int32_t ticket_pabuf;
1603 extern struct pf_altqqueue *pf_altqs_active;
1604 extern struct pf_altqqueue *pf_altqs_inactive;
1605 extern struct pf_poolqueue *pf_pools_active;
1606 extern struct pf_poolqueue *pf_pools_inactive;
1607 extern int pf_tbladdr_setup(struct pf_ruleset *,
1608 struct pf_addr_wrap *);
1609 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1610 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1611 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1612 extern vm_zone_t pf_src_tree_pl, pf_rule_pl;
1613 extern vm_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1614 extern vm_zone_t pfr_ktable_pl, pfr_kentry_pl;
1615 extern vm_zone_t pf_cache_pl, pf_cent_pl;
1616 extern vm_zone_t pf_state_scrub_pl;
1617 extern vm_zone_t pfi_addr_pl;
1618 extern void pf_purge_thread(void *);
1619 extern int pf_purge_expired_src_nodes(int);
1620 extern int pf_purge_expired_states(u_int32_t, int);
1621 extern void pf_unlink_state(struct pf_state *);
1622 extern void pf_free_state(struct pf_state *);
1623 extern int pf_insert_state(struct pfi_kif *,
1625 extern int pf_insert_src_node(struct pf_src_node **,
1626 struct pf_rule *, struct pf_addr *,
1628 void pf_src_tree_remove_state(struct pf_state *);
1629 u_int32_t pf_state_hash(struct pf_state *s);
1630 extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
1631 extern struct pf_state *pf_find_state_all(struct pf_state_cmp *key,
1632 u_int8_t tree, int *more);
1633 extern void pf_print_state(struct pf_state *);
1634 extern void pf_print_flags(u_int8_t);
1635 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1638 extern struct ifnet *sync_ifp;
1639 extern struct pf_rule pf_default_rule;
1640 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1642 void pf_rm_rule(struct pf_rulequeue *,
1646 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *, struct inpcb *);
1650 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *, struct inpcb *);
1651 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1652 struct pf_addr *, struct pf_addr *, u_int8_t);
1653 void pf_addr_inc(struct pf_addr *, sa_family_t);
1656 u_int32_t pf_new_isn(struct pf_state *); /* From FreeBSD */
1657 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1659 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1660 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1661 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *,
1663 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1664 struct pf_addr *, sa_family_t);
1665 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1666 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1667 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1668 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1670 void pf_normalize_init(void);
1671 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1673 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1675 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1677 void pf_normalize_tcp_cleanup(struct pf_state *);
1678 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1679 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1680 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1681 u_short *, struct tcphdr *, struct pf_state *,
1682 struct pf_state_peer *, struct pf_state_peer *, int *);
1684 pf_state_expires(const struct pf_state *);
1685 void pf_purge_expired_fragments(void);
1686 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *);
1687 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *);
1688 int pf_socket_lookup(int, struct pf_pdesc *, struct inpcb *);
1689 void pfr_initialize(void);
1690 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1691 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1692 u_int64_t, int, int, int);
1693 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1694 struct pf_addr **, struct pf_addr **, sa_family_t);
1695 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1697 pfr_attach_table(struct pf_ruleset *, char *);
1698 void pfr_detach_table(struct pfr_ktable *);
1699 int pfr_clr_tables(struct pfr_table *, int *, int);
1700 int pfr_add_tables(struct pfr_table *, int, int *, int);
1701 int pfr_del_tables(struct pfr_table *, int, int *, int);
1702 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1703 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1704 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1705 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1706 int pfr_clr_addrs(struct pfr_table *, int *, int);
1707 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1708 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1710 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1712 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1713 int *, int *, int *, int, u_int32_t);
1714 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1715 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1716 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1718 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1720 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1721 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1722 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1723 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1724 int *, u_int32_t, int);
1726 extern struct pfi_statehead pfi_statehead;
1727 extern struct pfi_kif *pfi_all;
1729 void pfi_initialize(void);
1730 struct pfi_kif *pfi_kif_get(const char *);
1731 void pfi_cleanup(void);
1732 void pfi_attach_clone(struct if_clone *);
1733 void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
1734 void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
1735 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1736 void pfi_attach_ifnet(struct ifnet *);
1737 void pfi_detach_ifnet(struct ifnet *);
1738 struct pfi_kif *pfi_lookup_create(const char *);
1739 struct pfi_kif *pfi_lookup_if(const char *);
1740 void pfi_attach_ifgroup(struct ifg_group *);
1741 void pfi_detach_ifgroup(struct ifg_group *);
1742 void pfi_group_change(const char *);
1743 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1745 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1746 void pfi_dynaddr_remove(struct pf_addr_wrap *);
1747 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1748 void pfi_fill_oldstatus(struct pf_status *);
1749 int pfi_clr_istats(const char *);
1750 int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1751 int pfi_set_flags(const char *, int);
1752 int pfi_clear_flags(const char *, int);
1754 u_int16_t pf_tagname2tag(char *);
1755 void pf_tag2tagname(u_int16_t, char *);
1756 void pf_tag_ref(u_int16_t);
1757 void pf_tag_unref(u_int16_t);
1758 int pf_tag_packet(struct mbuf *, struct pf_mtag *, int, int);
1759 u_int32_t pf_qname2qid(char *);
1760 void pf_qid2qname(u_int32_t, char *);
1761 void pf_qid_unref(u_int32_t);
1762 struct pf_mtag *pf_find_mtag(struct mbuf *);
1763 struct pf_mtag *pf_get_mtag(struct mbuf *);
1765 extern struct pf_status pf_status;
1766 extern vm_zone_t pf_frent_pl, pf_frag_pl;
1767 extern struct lock pf_consistency_lock;
1769 struct pf_pool_limit {
1773 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1776 LIST_ENTRY(pf_frent) fr_next;
1782 LIST_ENTRY(pf_frcache) fr_next;
1787 struct pf_fragment {
1788 RB_ENTRY(pf_fragment) fr_entry;
1789 TAILQ_ENTRY(pf_fragment) frag_next;
1790 struct in_addr fr_src;
1791 struct in_addr fr_dst;
1792 u_int8_t fr_p; /* protocol of this fragment */
1793 u_int8_t fr_flags; /* status flags */
1794 u_int16_t fr_id; /* fragment id for reassemble */
1795 u_int16_t fr_max; /* fragment data max */
1796 u_int32_t fr_timeout;
1797 #define fr_queue fr_u.fru_queue
1798 #define fr_cache fr_u.fru_cache
1800 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
1801 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
1805 #endif /* _KERNEL */
1807 extern struct pf_anchor_global pf_anchors;
1808 extern struct pf_anchor pf_main_anchor;
1809 #define pf_main_ruleset pf_main_anchor.ruleset
1811 /* these ruleset functions can be linked into userland programs (pfctl) */
1812 int pf_get_ruleset_number(u_int8_t);
1813 void pf_init_ruleset(struct pf_ruleset *);
1814 int pf_anchor_setup(struct pf_rule *,
1815 const struct pf_ruleset *, const char *);
1816 int pf_anchor_copyout(const struct pf_ruleset *,
1817 const struct pf_rule *, struct pfioc_rule *);
1818 void pf_anchor_remove(struct pf_rule *);
1819 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1820 struct pf_anchor *pf_find_anchor(const char *);
1821 struct pf_ruleset *pf_find_ruleset(const char *);
1822 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1823 void pf_rs_initialize(void);
1825 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1826 int pf_osfp_add(struct pf_osfp_ioctl *);
1828 struct pf_osfp_enlist *
1829 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1830 const struct tcphdr *);
1831 #endif /* _KERNEL */
1832 struct pf_osfp_enlist *
1833 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *,
1834 const struct tcphdr *);
1835 void pf_osfp_flush(void);
1836 int pf_osfp_get(struct pf_osfp_ioctl *);
1837 int pf_osfp_initialize(void);
1838 void pf_osfp_cleanup(void);
1839 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1840 struct pf_os_fingerprint *
1841 pf_osfp_validate(void);
1844 #endif /* _NET_PFVAR_H_ */