| 1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 126261 2004-02-26 02:34:12Z mlaier $ */ |
2/* $OpenBSD: pfvar.h,v 1.170 2003/08/22 21:50:34 david Exp $ */
3
4/*
5 * Copyright (c) 2001 Daniel Hartmeier
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
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.
18 *
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.
31 *
32 */
33
34#ifndef _NET_PFVAR_H_
35#define _NET_PFVAR_H_
36
37#include <sys/types.h>
38#include <sys/queue.h>
39#include <sys/tree.h>
40
41#include <net/radix.h>
|
42#if defined(__FreeBSD__)
43#include <vm/uma.h>
44#else |
45#include <netinet/ip_ipsp.h>
|
46#endif
47
48#if defined(__FreeBSD__)
49#include <netinet/in.h>
50/*
51 * XXX
52 * If we include <netipsec/keydb.h>, we need _KERNEL definition.
53 * This makes pfctl compilation difficult.
54 */
55union sockaddr_union {
56 struct sockaddr sa;
57 struct sockaddr_in sin;
58 struct sockaddr_in6 sin6;
59};
60#endif
61 |
62#include <netinet/tcp_fsm.h>
63
64struct ip;
65
66#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
67#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
68
69enum { PF_INOUT, PF_IN, PF_OUT };
70enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT,
71 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
72enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
73 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
74enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
75 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
76enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
77enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
78 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
79 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
80/*
81 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
82 * PFTM_MAX, special cases afterwards. See pf_state_expires().
83 */
84enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
85 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
86 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
87 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
88 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
89 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
90 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_MAX,
91 PFTM_PURGE, PFTM_UNTIL_PACKET };
92enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
93enum { PF_LIMIT_STATES, PF_LIMIT_FRAGS, PF_LIMIT_MAX };
94#define PF_POOL_IDMASK 0x0f
95enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
96 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
97enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
98 PF_ADDR_TABLE };
99#define PF_POOL_TYPEMASK 0x0f
100#define PF_WSCALE_FLAG 0x80
101#define PF_WSCALE_MASK 0x0f
102
103struct pf_addr {
104 union {
105 struct in_addr v4;
106 struct in6_addr v6;
107 u_int8_t addr8[16];
108 u_int16_t addr16[8];
109 u_int32_t addr32[4];
110 } pfa; /* 128-bit address */
111#define v4 pfa.v4
112#define v6 pfa.v6
113#define addr8 pfa.addr8
114#define addr16 pfa.addr16
115#define addr32 pfa.addr32
116};
117
118#define PF_TABLE_NAME_SIZE 32
119
120struct pf_addr_wrap {
121 union {
122 struct {
123 struct pf_addr addr;
124 struct pf_addr mask;
125 } a;
126 char ifname[IFNAMSIZ];
127 char tblname[PF_TABLE_NAME_SIZE];
128 } v;
129 union {
130 struct pf_addr_dyn *dyn;
131 struct pfr_ktable *tbl;
132 int tblcnt;
133 } p;
134 u_int8_t type; /* PF_ADDR_* */
135};
136
137struct pf_addr_dyn {
138 char ifname[IFNAMSIZ];
139 struct ifnet *ifp;
140 struct pf_addr *addr;
141 sa_family_t af;
|
142#if defined(__FreeBSD__) && defined(HOOK_HACK)
143 eventhandler_tag hook_cookie;
144#else |
145 void *hook_cookie;
|
| 146#endif |
147 u_int8_t undefined;
148};
149
150/*
151 * Address manipulation macros
152 */
153
154#ifdef _KERNEL
155
|
156#if defined(__FreeBSD__)
157#define splsoftnet() splnet()
158
159#define PF_NAME "pf"
160
161#define PR_NOWAIT M_NOWAIT
162#define pool_get(p, f) uma_zalloc(*(p), (f))
163#define pool_put(p, o) uma_zfree(*(p), (o))
164
165#define UMA_CREATE(var, type, desc) \
166 var = uma_zcreate(desc, sizeof(type), \
167 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \
168 if (var == NULL) break
169#define UMA_DESTROY(var) \
170 if(var) uma_zdestroy(var)
171
172extern struct mtx pf_task_mtx;
173#if defined(ALTQ)
174extern struct mtx pf_altq_mtx;
175extern int pfaltq_ref;
176#endif
177
178#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h))
179
180#define PF_LOCK() do { \
181 PF_ASSERT(MA_NOTOWNED); \
182 mtx_lock(&pf_task_mtx); \
183} while(0)
184#define PF_UNLOCK() do { \
185 PF_ASSERT(MA_OWNED); \
186 mtx_unlock(&pf_task_mtx); \
187} while(0)
188
189#define PF_COPYIN(uaddr, kaddr, len, r) do { \
190 PF_UNLOCK(); \
191 r = copyin((uaddr), (kaddr), (len)); \
192 PF_LOCK(); \
193} while(0)
194
195#define PF_COPYOUT(kaddr, uaddr, len, r) do { \
196 PF_UNLOCK(); \
197 r = copyout((kaddr), (uaddr), (len)); \
198 PF_LOCK(); \
199} while(0)
200
201extern void init_pf_mutex(void);
202extern void destroy_pf_mutex(void);
203
204#define PF_MODVER 1
205#define PFLOG_MODVER 1
206#define PFSYNC_MODVER 1
207
208#define PFLOG_MINVER 1
209#define PFLOG_PREFVER PFLOG_MODVER
210#define PFLOG_MAXVER 1
211#define PFSYNC_MINVER 1
212#define PFSYNC_PREFVER PFSYNC_MODVER
213#define PFSYNC_MAXVER 1
214#endif
215 |
216#ifdef INET
217#ifndef INET6
218#define PF_INET_ONLY
219#endif /* ! INET6 */
220#endif /* INET */
221
222#ifdef INET6
223#ifndef INET
224#define PF_INET6_ONLY
225#endif /* ! INET */
226#endif /* INET6 */
227
228#ifdef INET
229#ifdef INET6
230#define PF_INET_INET6
231#endif /* INET6 */
232#endif /* INET */
233
234#else
235
236#define PF_INET_INET6
237
238#endif /* _KERNEL */
239
240/* Both IPv4 and IPv6 */
241#ifdef PF_INET_INET6
242
243#define PF_AEQ(a, b, c) \
244 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
245 ((a)->addr32[3] == (b)->addr32[3] && \
246 (a)->addr32[2] == (b)->addr32[2] && \
247 (a)->addr32[1] == (b)->addr32[1] && \
248 (a)->addr32[0] == (b)->addr32[0])) \
249
250#define PF_ANEQ(a, b, c) \
251 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
252 ((a)->addr32[3] != (b)->addr32[3] || \
253 (a)->addr32[2] != (b)->addr32[2] || \
254 (a)->addr32[1] != (b)->addr32[1] || \
255 (a)->addr32[0] != (b)->addr32[0])) \
256
257#define PF_AZERO(a, c) \
258 ((c == AF_INET && !(a)->addr32[0]) || \
259 (!(a)->addr32[0] && !(a)->addr32[1] && \
260 !(a)->addr32[2] && !(a)->addr32[3] )) \
261
262#define PF_MATCHA(n, a, m, b, f) \
263 pf_match_addr(n, a, m, b, f)
264
265#define PF_ACPY(a, b, f) \
266 pf_addrcpy(a, b, f)
267
268#define PF_AINC(a, f) \
269 pf_addr_inc(a, f)
270
271#define PF_POOLMASK(a, b, c, d, f) \
272 pf_poolmask(a, b, c, d, f)
273
274#else
275
276/* Just IPv6 */
277
278#ifdef PF_INET6_ONLY
279
280#define PF_AEQ(a, b, c) \
281 ((a)->addr32[3] == (b)->addr32[3] && \
282 (a)->addr32[2] == (b)->addr32[2] && \
283 (a)->addr32[1] == (b)->addr32[1] && \
284 (a)->addr32[0] == (b)->addr32[0]) \
285
286#define PF_ANEQ(a, b, c) \
287 ((a)->addr32[3] != (b)->addr32[3] || \
288 (a)->addr32[2] != (b)->addr32[2] || \
289 (a)->addr32[1] != (b)->addr32[1] || \
290 (a)->addr32[0] != (b)->addr32[0]) \
291
292#define PF_AZERO(a, c) \
293 (!(a)->addr32[0] && \
294 !(a)->addr32[1] && \
295 !(a)->addr32[2] && \
296 !(a)->addr32[3] ) \
297
298#define PF_MATCHA(n, a, m, b, f) \
299 pf_match_addr(n, a, m, b, f)
300
301#define PF_ACPY(a, b, f) \
302 pf_addrcpy(a, b, f)
303
304#define PF_AINC(a, f) \
305 pf_addr_inc(a, f)
306
307#define PF_POOLMASK(a, b, c, d, f) \
308 pf_poolmask(a, b, c, d, f)
309
310#else
311
312/* Just IPv4 */
313#ifdef PF_INET_ONLY
314
315#define PF_AEQ(a, b, c) \
316 ((a)->addr32[0] == (b)->addr32[0])
317
318#define PF_ANEQ(a, b, c) \
319 ((a)->addr32[0] != (b)->addr32[0])
320
321#define PF_AZERO(a, c) \
322 (!(a)->addr32[0])
323
324#define PF_MATCHA(n, a, m, b, f) \
325 pf_match_addr(n, a, m, b, f)
326
327#define PF_ACPY(a, b, f) \
328 (a)->v4.s_addr = (b)->v4.s_addr
329
330#define PF_AINC(a, f) \
331 do { \
332 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
333 } while (0)
334
335#define PF_POOLMASK(a, b, c, d, f) \
336 do { \
337 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
338 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
339 } while (0)
340
341#endif /* PF_INET_ONLY */
342#endif /* PF_INET6_ONLY */
343#endif /* PF_INET_INET6 */
344
345#define PF_MISMATCHAW(aw, x, af, not) \
346 ( \
347 (((aw)->type == PF_ADDR_NOROUTE && \
348 pf_routable((x), (af))) || \
349 ((aw)->type == PF_ADDR_TABLE && \
350 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
351 ((aw)->type == PF_ADDR_DYNIFTL && \
352 ((aw)->p.dyn->undefined || \
353 (!PF_AZERO(&(aw)->v.a.mask, (af)) && \
354 !PF_MATCHA(0, &(aw)->v.a.addr, \
355 &(aw)->v.a.mask, (x), (af))))) || \
356 ((aw)->type == PF_ADDR_ADDRMASK && \
357 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
358 !PF_MATCHA(0, &(aw)->v.a.addr, \
359 &(aw)->v.a.mask, (x), (af)))) != \
360 (not) \
361 )
362
363struct pf_rule_uid {
364 uid_t uid[2];
365 u_int8_t op;
366};
367
368struct pf_rule_gid {
369 uid_t gid[2];
370 u_int8_t op;
371};
372
373struct pf_rule_addr {
374 struct pf_addr_wrap addr;
375 u_int16_t port[2];
376 u_int8_t not;
377 u_int8_t port_op;
378};
379
380struct pf_pooladdr {
381 struct pf_addr_wrap addr;
382 TAILQ_ENTRY(pf_pooladdr) entries;
383 char ifname[IFNAMSIZ];
384 struct ifnet *ifp;
385};
386
387TAILQ_HEAD(pf_palist, pf_pooladdr);
388
389struct pf_poolhashkey {
390 union {
391 u_int8_t key8[16];
392 u_int16_t key16[8];
393 u_int32_t key32[4];
394 } pfk; /* 128-bit hash key */
395#define key8 pfk.key8
396#define key16 pfk.key16
397#define key32 pfk.key32
398};
399
400struct pf_pool {
401 struct pf_palist list;
402 struct pf_pooladdr *cur;
403 struct pf_poolhashkey key;
404 struct pf_addr counter;
405 int tblidx;
406 u_int16_t proxy_port[2];
407 u_int8_t port_op;
408 u_int8_t opts;
409};
410
411
412/* A packed Operating System description for fingerprinting */
413typedef u_int32_t pf_osfp_t;
414#define PF_OSFP_ANY ((pf_osfp_t)0)
415#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
416#define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
417
418struct pf_osfp_entry {
419 SLIST_ENTRY(pf_osfp_entry) fp_entry;
420 pf_osfp_t fp_os;
421 int fp_enflags;
422#define PF_OSFP_EXPANDED 0x001 /* expanded entry */
423#define PF_OSFP_GENERIC 0x002 /* generic signature */
424#define PF_OSFP_NODETAIL 0x004 /* no p0f details */
425#define PF_OSFP_LEN 32
426 char fp_class_nm[PF_OSFP_LEN];
427 char fp_version_nm[PF_OSFP_LEN];
428 char fp_subtype_nm[PF_OSFP_LEN];
429};
430#define PF_OSFP_ENTRY_EQ(a, b) \
431 ((a)->fp_os == (b)->fp_os && \
432 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
433 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
434 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
435
436/* handle pf_osfp_t packing */
437#define _FP_RESERVED_BIT 1 /* For the special negative #defines */
438#define _FP_UNUSED_BITS 1
439#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
440#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
441#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
442#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
443 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
444 ((1 << _FP_CLASS_BITS) - 1); \
445 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
446 ((1 << _FP_VERSION_BITS) - 1);\
447 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
448} while(0)
449#define PF_OSFP_PACK(osfp, class, version, subtype) do { \
450 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
451 + _FP_SUBTYPE_BITS); \
452 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
453 _FP_SUBTYPE_BITS; \
454 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
455} while(0)
456
457/* the fingerprint of an OSes TCP SYN packet */
458typedef u_int64_t pf_tcpopts_t;
459struct pf_os_fingerprint {
460 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
461 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
462 u_int16_t fp_wsize; /* TCP window size */
463 u_int16_t fp_psize; /* ip->ip_len */
464 u_int16_t fp_mss; /* TCP MSS */
465 u_int16_t fp_flags;
466#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
467#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
468#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
469#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
470#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
471#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
472#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
473#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
474#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
475#define PF_OSFP_MSS 0x0200 /* TCP MSS */
476#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
477#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
478#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
479#define PF_OSFP_TS0 0x2000 /* Zero timestamp */
480 u_int8_t fp_optcnt; /* TCP option count */
481 u_int8_t fp_wscale; /* TCP window scaling */
482 u_int8_t fp_ttl; /* IPv4 TTL */
483#define PF_OSFP_MAXTTL_OFFSET 40
484/* TCP options packing */
485#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
486#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
487#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
488#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
489#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
490#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
491#define PF_OSFP_MAX_OPTS \
492 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
493 / PF_OSFP_TCPOPT_BITS
494
495 SLIST_ENTRY(pf_os_fingerprint) fp_next;
496};
497
498struct pf_osfp_ioctl {
499 struct pf_osfp_entry fp_os;
500 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
501 u_int16_t fp_wsize; /* TCP window size */
502 u_int16_t fp_psize; /* ip->ip_len */
503 u_int16_t fp_mss; /* TCP MSS */
504 u_int16_t fp_flags;
505 u_int8_t fp_optcnt; /* TCP option count */
506 u_int8_t fp_wscale; /* TCP window scaling */
507 u_int8_t fp_ttl; /* IPv4 TTL */
508
509 int fp_getnum; /* DIOCOSFPGET number */
510};
511
512
513union pf_rule_ptr {
514 struct pf_rule *ptr;
515 u_int32_t nr;
516};
517
518struct pf_rule {
519 struct pf_rule_addr src;
520 struct pf_rule_addr dst;
521#define PF_SKIP_IFP 0
522#define PF_SKIP_DIR 1
523#define PF_SKIP_AF 2
524#define PF_SKIP_PROTO 3
525#define PF_SKIP_SRC_ADDR 4
526#define PF_SKIP_SRC_PORT 5
527#define PF_SKIP_DST_ADDR 6
528#define PF_SKIP_DST_PORT 7
529#define PF_SKIP_COUNT 8
530 union pf_rule_ptr skip[PF_SKIP_COUNT];
531#define PF_RULE_LABEL_SIZE 64
532 char label[PF_RULE_LABEL_SIZE];
533 u_int32_t timeout[PFTM_MAX];
534#define PF_QNAME_SIZE 16
535 char ifname[IFNAMSIZ];
536 char qname[PF_QNAME_SIZE];
537 char pqname[PF_QNAME_SIZE];
538#define PF_ANCHOR_NAME_SIZE 16
539 char anchorname[PF_ANCHOR_NAME_SIZE];
540#define PF_TAG_NAME_SIZE 16
541 char tagname[PF_TAG_NAME_SIZE];
542 char match_tagname[PF_TAG_NAME_SIZE];
543
544 TAILQ_ENTRY(pf_rule) entries;
545 struct pf_pool rpool;
546
547 u_int64_t evaluations;
548 u_int64_t packets;
549 u_int64_t bytes;
550
551 struct ifnet *ifp;
552 struct pf_anchor *anchor;
553
554 pf_osfp_t os_fingerprint;
555 u_int32_t states;
556 u_int32_t max_states;
557 u_int32_t qid;
558 u_int32_t pqid;
559 u_int32_t rt_listid;
560 u_int32_t nr;
561
562 u_int16_t return_icmp;
563 u_int16_t return_icmp6;
564 u_int16_t max_mss;
565 u_int16_t tag;
566 u_int16_t match_tag;
567
568 struct pf_rule_uid uid;
569 struct pf_rule_gid gid;
570
571 u_int32_t rule_flag;
572 u_int8_t action;
573 u_int8_t direction;
574 u_int8_t log;
575 u_int8_t quick;
576 u_int8_t ifnot;
577 u_int8_t match_tag_not;
578 u_int8_t natpass;
579
580#define PF_STATE_NORMAL 0x1
581#define PF_STATE_MODULATE 0x2
582#define PF_STATE_SYNPROXY 0x3
583 u_int8_t keep_state;
584 sa_family_t af;
585 u_int8_t proto;
586 u_int8_t type;
587 u_int8_t code;
588 u_int8_t flags;
589 u_int8_t flagset;
590 u_int8_t min_ttl;
591 u_int8_t allow_opts;
592 u_int8_t rt;
593 u_int8_t return_ttl;
594 u_int8_t tos;
595};
596
597/* rule flags */
598#define PFRULE_DROP 0x0000
599#define PFRULE_RETURNRST 0x0001
600#define PFRULE_FRAGMENT 0x0002
601#define PFRULE_RETURNICMP 0x0004
602#define PFRULE_RETURN 0x0008
603
604/* scrub flags */
605#define PFRULE_NODF 0x0100
606#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
607#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
608#define PFRULE_RANDOMID 0x0800
609#define PFRULE_REASSEMBLE_TCP 0x1000
610
611#define PFSTATE_HIWAT 10000 /* default state table size */
612
613
614struct pf_state_scrub {
615 u_int16_t pfss_flags;
616#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
617 u_int8_t pfss_ttl; /* stashed TTL */
618 u_int8_t pad;
619 u_int32_t pfss_ts_mod; /* timestamp modulation */
620};
621
622struct pf_state_host {
623 struct pf_addr addr;
624 u_int16_t port;
625 u_int16_t pad;
626};
627
628struct pf_state_peer {
629 u_int32_t seqlo; /* Max sequence number sent */
630 u_int32_t seqhi; /* Max the other end ACKd + win */
631 u_int32_t seqdiff; /* Sequence number modulator */
632 u_int16_t max_win; /* largest window (pre scaling) */
633 u_int8_t state; /* active state level */
634 u_int8_t wscale; /* window scaling factor */
635 u_int16_t mss; /* Maximum segment size option */
636 struct pf_state_scrub *scrub; /* state is scrubbed */
637};
638
639struct pf_state {
640 struct pf_state_host lan;
641 struct pf_state_host gwy;
642 struct pf_state_host ext;
643 struct pf_state_peer src;
644 struct pf_state_peer dst;
645 union pf_rule_ptr rule;
646 union pf_rule_ptr anchor;
647 union pf_rule_ptr nat_rule;
648 struct pf_addr rt_addr;
649 struct ifnet *rt_ifp;
650 u_int32_t creation;
651 u_int32_t expire;
652 u_int32_t packets[2];
653 u_int32_t bytes[2];
654 sa_family_t af;
655 u_int8_t proto;
656 u_int8_t direction;
657 u_int8_t log;
658 u_int8_t allow_opts;
659 u_int8_t timeout;
660 u_int8_t pad[2];
661};
662
663struct pf_tree_node {
664 RB_ENTRY(pf_tree_node) entry;
665 struct pf_state *state;
666 struct pf_addr addr[2];
667 u_int16_t port[2];
668 sa_family_t af;
669 u_int8_t proto;
670};
671
672TAILQ_HEAD(pf_rulequeue, pf_rule);
673
674struct pf_anchor;
675
676struct pf_ruleset {
677 TAILQ_ENTRY(pf_ruleset) entries;
678#define PF_RULESET_NAME_SIZE 16
679 char name[PF_RULESET_NAME_SIZE];
680 struct {
681 struct pf_rulequeue queues[2];
682 struct {
683 struct pf_rulequeue *ptr;
684 u_int32_t ticket;
685 } active, inactive;
686 } rules[PF_RULESET_MAX];
687 struct pf_anchor *anchor;
688 u_int32_t tticket;
689 int tables;
690 int topen;
691};
692
693TAILQ_HEAD(pf_rulesetqueue, pf_ruleset);
694
695struct pf_anchor {
696 TAILQ_ENTRY(pf_anchor) entries;
697 char name[PF_ANCHOR_NAME_SIZE];
698 struct pf_rulesetqueue rulesets;
699 int tables;
700};
701
702TAILQ_HEAD(pf_anchorqueue, pf_anchor);
703
704#define PFR_TFLAG_PERSIST 0x00000001
705#define PFR_TFLAG_CONST 0x00000002
706#define PFR_TFLAG_ACTIVE 0x00000004
707#define PFR_TFLAG_INACTIVE 0x00000008
708#define PFR_TFLAG_REFERENCED 0x00000010
709#define PFR_TFLAG_REFDANCHOR 0x00000020
710#define PFR_TFLAG_USRMASK 0x00000003
711#define PFR_TFLAG_SETMASK 0x0000003C
712#define PFR_TFLAG_ALLMASK 0x0000003F
713
714struct pfr_table {
715 char pfrt_anchor[PF_ANCHOR_NAME_SIZE];
716 char pfrt_ruleset[PF_RULESET_NAME_SIZE];
717 char pfrt_name[PF_TABLE_NAME_SIZE];
718 u_int32_t pfrt_flags;
719 u_int8_t pfrt_fback;
720};
721
722enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
723 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
724 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
725
726struct pfr_addr {
727 union {
728 struct in_addr _pfra_ip4addr;
729 struct in6_addr _pfra_ip6addr;
730 } pfra_u;
731 u_int8_t pfra_af;
732 u_int8_t pfra_net;
733 u_int8_t pfra_not;
734 u_int8_t pfra_fback;
735};
736#define pfra_ip4addr pfra_u._pfra_ip4addr
737#define pfra_ip6addr pfra_u._pfra_ip6addr
738
739enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
740enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
741#define PFR_OP_XPASS PFR_OP_ADDR_MAX
742
743struct pfr_astats {
744 struct pfr_addr pfras_a;
745 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
746 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
747 long pfras_tzero;
748};
749
750enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
751
752struct pfr_tstats {
753 struct pfr_table pfrts_t;
754 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
755 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
756 u_int64_t pfrts_match;
757 u_int64_t pfrts_nomatch;
758 long pfrts_tzero;
759 int pfrts_cnt;
760 int pfrts_refcnt[PFR_REFCNT_MAX];
761};
762#define pfrts_name pfrts_t.pfrt_name
763#define pfrts_flags pfrts_t.pfrt_flags
764
765SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
766struct pfr_kentry {
767 struct radix_node pfrke_node[2];
768 union sockaddr_union pfrke_sa;
769 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
770 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
771 SLIST_ENTRY(pfr_kentry) pfrke_workq;
772 long pfrke_tzero;
773 u_int8_t pfrke_af;
774 u_int8_t pfrke_net;
775 u_int8_t pfrke_not;
776 u_int8_t pfrke_mark;
777};
778
779SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
780RB_HEAD(pfr_ktablehead, pfr_ktable);
781struct pfr_ktable {
782 struct pfr_tstats pfrkt_ts;
783 RB_ENTRY(pfr_ktable) pfrkt_tree;
784 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
785 struct radix_node_head *pfrkt_ip4;
786 struct radix_node_head *pfrkt_ip6;
787 struct pfr_ktable *pfrkt_shadow;
788 struct pfr_ktable *pfrkt_root;
789 struct pf_ruleset *pfrkt_rs;
790 int pfrkt_nflags;
791};
792#define pfrkt_t pfrkt_ts.pfrts_t
793#define pfrkt_name pfrkt_t.pfrt_name
794#define pfrkt_anchor pfrkt_t.pfrt_anchor
795#define pfrkt_ruleset pfrkt_t.pfrt_ruleset
796#define pfrkt_flags pfrkt_t.pfrt_flags
797#define pfrkt_cnt pfrkt_ts.pfrts_cnt
798#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
799#define pfrkt_packets pfrkt_ts.pfrts_packets
800#define pfrkt_bytes pfrkt_ts.pfrts_bytes
801#define pfrkt_match pfrkt_ts.pfrts_match
802#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
803#define pfrkt_tzero pfrkt_ts.pfrts_tzero
804
805struct pf_pdesc {
806 u_int64_t tot_len; /* Make Mickey money */
807 union {
808 struct tcphdr *tcp;
809 struct udphdr *udp;
810 struct icmp *icmp;
811#ifdef INET6
812 struct icmp6_hdr *icmp6;
813#endif /* INET6 */
814 void *any;
815 } hdr;
816 struct pf_addr *src;
817 struct pf_addr *dst;
818 u_int16_t *ip_sum;
819 u_int32_t p_len; /* total length of payload */
820 u_int16_t flags; /* Let SCRUB trigger behavior in
821 * state code. Easier than tags */
822#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
823 sa_family_t af;
824 u_int8_t proto;
825 u_int8_t tos;
826};
827
828/* flags for RDR options */
829#define PF_DPORT_RANGE 0x01 /* Dest port uses range */
830#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
831
832/* Reasons code for passing/dropping a packet */
833#define PFRES_MATCH 0 /* Explicit match of a rule */
834#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
835#define PFRES_FRAG 2 /* Dropping following fragment */
836#define PFRES_SHORT 3 /* Dropping short packet */
837#define PFRES_NORM 4 /* Dropping by normalizer */
838#define PFRES_MEMORY 5 /* Dropped due to lacking mem */
839#define PFRES_MAX 6 /* total+1 */
840
841#define PFRES_NAMES { \
842 "match", \
843 "bad-offset", \
844 "fragment", \
845 "short", \
846 "normalize", \
847 "memory", \
848 NULL \
849}
850
851/* UDP state enumeration */
852#define PFUDPS_NO_TRAFFIC 0
853#define PFUDPS_SINGLE 1
854#define PFUDPS_MULTIPLE 2
855
856#define PFUDPS_NSTATES 3 /* number of state levels */
857
858#define PFUDPS_NAMES { \
859 "NO_TRAFFIC", \
860 "SINGLE", \
861 "MULTIPLE", \
862 NULL \
863}
864
865/* Other protocol state enumeration */
866#define PFOTHERS_NO_TRAFFIC 0
867#define PFOTHERS_SINGLE 1
868#define PFOTHERS_MULTIPLE 2
869
870#define PFOTHERS_NSTATES 3 /* number of state levels */
871
872#define PFOTHERS_NAMES { \
873 "NO_TRAFFIC", \
874 "SINGLE", \
875 "MULTIPLE", \
876 NULL \
877}
878
879#define FCNT_STATE_SEARCH 0
880#define FCNT_STATE_INSERT 1
881#define FCNT_STATE_REMOVALS 2
882#define FCNT_MAX 3
883
884
885#define ACTION_SET(a, x) \
886 do { \
887 if ((a) != NULL) \
888 *(a) = (x); \
889 } while (0)
890
891#define REASON_SET(a, x) \
892 do { \
893 if ((a) != NULL) \
894 *(a) = (x); \
895 if (x < PFRES_MAX) \
896 pf_status.counters[x]++; \
897 } while (0)
898
899struct pf_status {
900 u_int64_t counters[PFRES_MAX];
901 u_int64_t fcounters[FCNT_MAX];
902 u_int64_t pcounters[2][2][3];
903 u_int64_t bcounters[2][2];
904 u_int32_t running;
905 u_int32_t states;
906 u_int32_t since;
907 u_int32_t debug;
908 char ifname[IFNAMSIZ];
909};
910
911struct cbq_opts {
912 u_int minburst;
913 u_int maxburst;
914 u_int pktsize;
915 u_int maxpktsize;
916 u_int ns_per_byte;
917 u_int maxidle;
918 int minidle;
919 u_int offtime;
920 int flags;
921};
922
923struct priq_opts {
924 int flags;
925};
926
927struct hfsc_opts {
928 /* real-time service curve */
929 u_int rtsc_m1; /* slope of the 1st segment in bps */
930 u_int rtsc_d; /* the x-projection of m1 in msec */
931 u_int rtsc_m2; /* slope of the 2nd segment in bps */
932 /* link-sharing service curve */
933 u_int lssc_m1;
934 u_int lssc_d;
935 u_int lssc_m2;
936 /* upper-limit service curve */
937 u_int ulsc_m1;
938 u_int ulsc_d;
939 u_int ulsc_m2;
940 int flags;
941};
942
943struct pf_altq {
944 char ifname[IFNAMSIZ];
945
946 void *altq_disc; /* discipline-specific state */
947 TAILQ_ENTRY(pf_altq) entries;
948
949 /* scheduler spec */
950 u_int8_t scheduler; /* scheduler type */
951 u_int16_t tbrsize; /* tokenbucket regulator size */
952 u_int32_t ifbandwidth; /* interface bandwidth */
953
954 /* queue spec */
955 char qname[PF_QNAME_SIZE]; /* queue name */
956 char parent[PF_QNAME_SIZE]; /* parent name */
957 u_int32_t parent_qid; /* parent queue id */
958 u_int32_t bandwidth; /* queue bandwidth */
959 u_int8_t priority; /* priority */
960 u_int16_t qlimit; /* queue size limit */
961 u_int16_t flags; /* misc flags */
962 union {
963 struct cbq_opts cbq_opts;
964 struct priq_opts priq_opts;
965 struct hfsc_opts hfsc_opts;
966 } pq_u;
967
968 u_int32_t qid; /* return value */
969};
970
971struct pf_tag {
972 u_int16_t tag; /* tag id */
973};
974
975struct pf_tagname {
976 TAILQ_ENTRY(pf_tagname) entries;
977 char name[PF_TAG_NAME_SIZE];
978 u_int16_t tag;
979 int ref;
980};
981
982#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
983#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
984#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
985#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
986
987/*
988 * ioctl parameter structures
989 */
990
991struct pfioc_pooladdr {
992 u_int32_t action;
993 u_int32_t ticket;
994 u_int32_t nr;
995 u_int32_t r_num;
996 u_int8_t r_action;
997 u_int8_t r_last;
998 u_int8_t af;
999 char anchor[PF_ANCHOR_NAME_SIZE];
1000 char ruleset[PF_RULESET_NAME_SIZE];
1001 struct pf_pooladdr addr;
1002};
1003
1004struct pfioc_rule {
1005 u_int32_t action;
1006 u_int32_t ticket;
1007 u_int32_t pool_ticket;
1008 u_int32_t nr;
1009 char anchor[PF_ANCHOR_NAME_SIZE];
1010 char ruleset[PF_RULESET_NAME_SIZE];
1011 struct pf_rule rule;
1012};
1013
1014struct pfioc_natlook {
1015 struct pf_addr saddr;
1016 struct pf_addr daddr;
1017 struct pf_addr rsaddr;
1018 struct pf_addr rdaddr;
1019 u_int16_t sport;
1020 u_int16_t dport;
1021 u_int16_t rsport;
1022 u_int16_t rdport;
1023 sa_family_t af;
1024 u_int8_t proto;
1025 u_int8_t direction;
1026};
1027
1028struct pfioc_state {
1029 u_int32_t nr;
1030 struct pf_state state;
1031};
1032
1033struct pfioc_state_kill {
1034 /* XXX returns the number of states killed in psk_af */
1035 sa_family_t psk_af;
1036 int psk_proto;
1037 struct pf_rule_addr psk_src;
1038 struct pf_rule_addr psk_dst;
1039};
1040
1041struct pfioc_states {
1042 int ps_len;
1043 union {
1044 caddr_t psu_buf;
1045 struct pf_state *psu_states;
1046 } ps_u;
1047#define ps_buf ps_u.psu_buf
1048#define ps_states ps_u.psu_states
1049};
1050
1051struct pfioc_if {
1052 char ifname[IFNAMSIZ];
1053};
1054
1055struct pfioc_tm {
1056 int timeout;
1057 int seconds;
1058};
1059
1060struct pfioc_limit {
1061 int index;
1062 unsigned limit;
1063};
1064
1065struct pfioc_altq {
1066 u_int32_t action;
1067 u_int32_t ticket;
1068 u_int32_t nr;
1069 struct pf_altq altq;
1070};
1071
1072struct pfioc_qstats {
1073 u_int32_t ticket;
1074 u_int32_t nr;
1075 void *buf;
1076 int nbytes;
1077 u_int8_t scheduler;
1078};
1079
1080struct pfioc_anchor {
1081 u_int32_t nr;
1082 char name[PF_ANCHOR_NAME_SIZE];
1083};
1084
1085struct pfioc_ruleset {
1086 u_int32_t nr;
1087 char anchor[PF_ANCHOR_NAME_SIZE];
1088 char name[PF_RULESET_NAME_SIZE];
1089};
1090
1091#define PFR_FLAG_ATOMIC 0x00000001
1092#define PFR_FLAG_DUMMY 0x00000002
1093#define PFR_FLAG_FEEDBACK 0x00000004
1094#define PFR_FLAG_CLSTATS 0x00000008
1095#define PFR_FLAG_ADDRSTOO 0x00000010
1096#define PFR_FLAG_REPLACE 0x00000020
1097#define PFR_FLAG_ALLRSETS 0x00000040
1098#define PFR_FLAG_ALLMASK 0x0000007F
1099
1100struct pfioc_table {
1101 struct pfr_table pfrio_table;
1102 void *pfrio_buffer;
1103 int pfrio_esize;
1104 int pfrio_size;
1105 int pfrio_size2;
1106 int pfrio_nadd;
1107 int pfrio_ndel;
1108 int pfrio_nchange;
1109 int pfrio_flags;
1110 u_int32_t pfrio_ticket;
1111};
1112#define pfrio_exists pfrio_nadd
1113#define pfrio_nzero pfrio_nadd
1114#define pfrio_nmatch pfrio_nadd
1115#define pfrio_naddr pfrio_size2
1116#define pfrio_setflag pfrio_size2
1117#define pfrio_clrflag pfrio_nadd
1118
1119
1120/*
1121 * ioctl operations
1122 */
1123
1124#define DIOCSTART _IO ('D', 1)
1125#define DIOCSTOP _IO ('D', 2)
1126#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule)
1127#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1128#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule)
1129#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1130#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1131/* XXX cut 8 - 17 */
1132#define DIOCCLRSTATES _IO ('D', 18)
1133#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1134#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1135#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1136#define DIOCCLRSTATUS _IO ('D', 22)
1137#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1138#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1139#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1140#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1141/* XXX cut 26 - 28 */
1142#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1143#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1144#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1145#define DIOCCLRRULECTRS _IO ('D', 38)
1146#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1147#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1148#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1149#define DIOCSTARTALTQ _IO ('D', 42)
1150#define DIOCSTOPALTQ _IO ('D', 43)
1151#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t)
1152#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1153#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t)
1154#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1155#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1156#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1157#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1158#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1159#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1160#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1161#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1162#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1163#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor)
1164#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor)
1165#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1166#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1167#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1168#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1169#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1170#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1171#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1172#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1173#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1174#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1175#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1176#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1177#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1178#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1179#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1180#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1181#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1182#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table)
1183#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table)
1184#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1185#define DIOCOSFPFLUSH _IO('D', 78)
1186#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1187#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
|
1188#if defined(__FreeBSD__)
1189struct pf_ifspeed {
1190 char ifname[IFNAMSIZ];
1191 u_int32_t baudrate;
1192};
1193#define DIOCGIFSPEED _IOWR('D', 81, struct pf_ifspeed)
1194#endif |
1195
1196#ifdef _KERNEL
1197RB_HEAD(pf_state_tree, pf_tree_node);
1198RB_PROTOTYPE(pf_state_tree, pf_tree_node, entry, pf_state_compare);
1199extern struct pf_state_tree tree_lan_ext, tree_ext_gwy;
1200
1201extern struct pf_anchorqueue pf_anchors;
1202extern struct pf_ruleset pf_main_ruleset;
1203TAILQ_HEAD(pf_poolqueue, pf_pool);
1204extern struct pf_poolqueue pf_pools[2];
1205TAILQ_HEAD(pf_altqqueue, pf_altq);
1206extern struct pf_altqqueue pf_altqs[2];
1207extern struct pf_palist pf_pabuf;
1208
1209
1210extern u_int32_t ticket_altqs_active;
1211extern u_int32_t ticket_altqs_inactive;
1212extern u_int32_t ticket_pabuf;
1213extern struct pf_altqqueue *pf_altqs_active;
1214extern struct pf_altqqueue *pf_altqs_inactive;
1215extern struct pf_poolqueue *pf_pools_active;
1216extern struct pf_poolqueue *pf_pools_inactive;
1217extern int pf_tbladdr_setup(struct pf_ruleset *,
1218 struct pf_addr_wrap *);
1219extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1220extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1221extern int pf_dynaddr_setup(struct pf_addr_wrap *,
1222 sa_family_t);
1223extern void pf_dynaddr_copyout(struct pf_addr_wrap *);
1224extern void pf_dynaddr_remove(struct pf_addr_wrap *);
1225extern void pf_calc_skip_steps(struct pf_rulequeue *);
1226extern void pf_rule_set_qid(struct pf_rulequeue *);
1227extern u_int32_t pf_qname_to_qid(char *);
1228extern void pf_update_anchor_rules(void);
|
1229#if defined(__FreeBSD__)
1230extern uma_zone_t pf_tree_pl, pf_rule_pl, pf_addr_pl;
1231extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1232extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl;
1233extern uma_zone_t pf_cache_pl, pf_cent_pl;
1234extern uma_zone_t pf_state_scrub_pl;
1235#else |
1236extern struct pool pf_tree_pl, pf_rule_pl, pf_addr_pl;
1237extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1238extern struct pool pf_state_scrub_pl;
|
| 1239#endif |
1240extern void pf_purge_timeout(void *);
1241extern void pf_purge_expired_states(void);
1242extern int pf_insert_state(struct pf_state *);
1243extern struct pf_state *pf_find_state(struct pf_state_tree *,
1244 struct pf_tree_node *);
1245extern struct pf_anchor *pf_find_anchor(const char *);
1246extern struct pf_ruleset *pf_find_ruleset(char *, char *);
1247extern struct pf_ruleset *pf_find_or_create_ruleset(char *, char *);
1248extern void pf_remove_if_empty_ruleset(
1249 struct pf_ruleset *);
1250
1251extern struct ifnet *status_ifp;
1252extern struct pf_rule pf_default_rule;
1253extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1254 u_int8_t);
1255void pf_rm_rule(struct pf_rulequeue *,
1256 struct pf_rule *);
1257
1258#ifdef INET
1259int pf_test(int, struct ifnet *, struct mbuf **);
1260#endif /* INET */
1261
1262#ifdef INET6
1263int pf_test6(int, struct ifnet *, struct mbuf **);
1264void pf_poolmask(struct pf_addr *, struct pf_addr*,
1265 struct pf_addr *, struct pf_addr *, u_int8_t);
1266void pf_addr_inc(struct pf_addr *, sa_family_t);
1267#endif /* INET6 */
1268
1269void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1270 sa_family_t);
1271void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1272int pflog_packet(struct ifnet *, struct mbuf *, sa_family_t, u_int8_t,
1273 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *);
1274int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1275 struct pf_addr *, sa_family_t);
1276int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1277int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1278int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1279int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1280
1281void pf_normalize_init(void);
1282int pf_normalize_ip(struct mbuf **, int, struct ifnet *, u_short *);
1283int pf_normalize_ip6(struct mbuf **, int, struct ifnet *, u_short *);
1284int pf_normalize_tcp(int, struct ifnet *, struct mbuf *, int, int, void *,
1285 struct pf_pdesc *);
1286void pf_normalize_tcp_cleanup(struct pf_state *);
1287int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1288 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1289int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1290 u_short *, struct tcphdr *, struct pf_state_peer *,
1291 struct pf_state_peer *, int *);
1292u_int32_t
1293 pf_state_expires(const struct pf_state *);
1294void pf_purge_expired_fragments(void);
1295int pf_routable(struct pf_addr *addr, sa_family_t af);
1296void pfr_initialize(void);
1297int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1298void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1299 u_int64_t, int, int, int);
1300int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1301 struct pf_addr **, struct pf_addr **, sa_family_t);
1302struct pfr_ktable *
1303 pfr_attach_table(struct pf_ruleset *, char *);
1304void pfr_detach_table(struct pfr_ktable *);
1305int pfr_clr_tables(struct pfr_table *, int *, int);
1306int pfr_add_tables(struct pfr_table *, int, int *, int);
1307int pfr_del_tables(struct pfr_table *, int, int *, int);
1308int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1309int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1310int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1311int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1312int pfr_clr_addrs(struct pfr_table *, int *, int);
1313int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1314 int);
1315int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1316 int);
1317int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1318 int *, int *, int *, int);
1319int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1320int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1321int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1322 int);
1323int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1324 int);
1325int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1326int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1327int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1328 int *, u_int32_t, int);
1329
1330u_int16_t pf_tagname2tag(char *);
1331void pf_tag2tagname(u_int16_t, char *);
1332void pf_tag_unref(u_int16_t);
1333int pf_tag_packet(struct mbuf *, struct pf_tag *, int);
1334
1335extern struct pf_status pf_status;
|
1336
1337#if defined(__FreeBSD__)
1338extern uma_zone_t pf_frent_pl, pf_frag_pl;
1339#else |
1340extern struct pool pf_frent_pl, pf_frag_pl;
|
| 1341#endif |
1342
1343struct pf_pool_limit {
1344 void *pp;
1345 unsigned limit;
1346};
1347extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1348
|
1349#if defined(__FreeBSD__)
1350struct pf_frent {
1351 LIST_ENTRY(pf_frent) fr_next;
1352 struct ip *fr_ip;
1353 struct mbuf *fr_m;
1354};
1355
1356struct pf_frcache {
1357 LIST_ENTRY(pf_frcache) fr_next;
1358 uint16_t fr_off;
1359 uint16_t fr_end;
1360};
1361
1362struct pf_fragment {
1363 RB_ENTRY(pf_fragment) fr_entry;
1364 TAILQ_ENTRY(pf_fragment) frag_next;
1365 struct in_addr fr_src;
1366 struct in_addr fr_dst;
1367 u_int8_t fr_p; /* protocol of this fragment */
1368 u_int8_t fr_flags; /* status flags */
1369 u_int16_t fr_id; /* fragment id for reassemble */
1370 u_int16_t fr_max; /* fragment data max */
1371 u_int32_t fr_timeout;
1372#define fr_queue fr_u.fru_queue
1373#define fr_cache fr_u.fru_cache
1374 union {
1375 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
1376 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
1377 } fr_u;
1378};
1379#endif /* (__FreeBSD__) */
1380 |
1381#endif /* _KERNEL */
1382
1383/* The fingerprint functions can be linked into userland programs (tcpdump) */
1384int pf_osfp_add(struct pf_osfp_ioctl *);
1385#ifdef _KERNEL
1386struct pf_osfp_enlist *
1387 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1388 const struct tcphdr *);
1389#endif /* _KERNEL */
1390struct pf_osfp_enlist *
1391 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *);
1392void pf_osfp_flush(void);
1393int pf_osfp_get(struct pf_osfp_ioctl *);
|
1394#if defined(__FreeBSD__)
1395int pf_osfp_initialize(void);
1396void pf_osfp_cleanup(void);
1397#else |
1398void pf_osfp_initialize(void);
|
| 1399#endif |
1400int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1401struct pf_os_fingerprint *
1402 pf_osfp_validate(void);
1403
1404
1405#endif /* _NET_PFVAR_H_ */
|