2 * Copyright (C) 1993-2001, 2003 by Darren Reed.
4 * See the IPFILTER.LICENCE file for details on licencing.
6 * @(#)ip_fil.h 1.35 6/5/96
7 * $Id: ip_fil.h,v 2.170.2.22 2005/07/16 05:55:35 darrenr Exp $
9 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
11 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
17 #include "netinet/ip_compat.h"
23 #if (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
37 #if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51)
38 # define SIOCADAFR _IOW('r', 60, struct ipfobj)
39 # define SIOCRMAFR _IOW('r', 61, struct ipfobj)
40 # define SIOCSETFF _IOW('r', 62, u_int)
41 # define SIOCGETFF _IOR('r', 63, u_int)
42 # define SIOCGETFS _IOWR('r', 64, struct ipfobj)
43 # define SIOCIPFFL _IOWR('r', 65, int)
44 # define SIOCIPFFB _IOR('r', 66, int)
45 # define SIOCADIFR _IOW('r', 67, struct ipfobj)
46 # define SIOCRMIFR _IOW('r', 68, struct ipfobj)
47 # define SIOCSWAPA _IOR('r', 69, u_int)
48 # define SIOCINAFR _IOW('r', 70, struct ipfobj)
49 # define SIOCINIFR _IOW('r', 71, struct ipfobj)
50 # define SIOCFRENB _IOW('r', 72, u_int)
51 # define SIOCFRSYN _IOW('r', 73, u_int)
52 # define SIOCFRZST _IOWR('r', 74, struct ipfobj)
53 # define SIOCZRLST _IOWR('r', 75, struct ipfobj)
54 # define SIOCAUTHW _IOWR('r', 76, struct ipfobj)
55 # define SIOCAUTHR _IOWR('r', 77, struct ipfobj)
56 # define SIOCATHST _IOWR('r', 78, struct ipfobj)
57 # define SIOCSTLCK _IOWR('r', 79, u_int)
58 # define SIOCSTPUT _IOWR('r', 80, struct ipfobj)
59 # define SIOCSTGET _IOWR('r', 81, struct ipfobj)
60 # define SIOCSTGSZ _IOWR('r', 82, struct ipfobj)
61 # define SIOCGFRST _IOWR('r', 83, struct ipfobj)
62 # define SIOCSETLG _IOWR('r', 84, int)
63 # define SIOCGETLG _IOWR('r', 85, int)
64 # define SIOCFUNCL _IOWR('r', 86, struct ipfunc_resolve)
65 # define SIOCIPFGETNEXT _IOWR('r', 87, struct ipfobj)
66 # define SIOCIPFGET _IOWR('r', 88, struct ipfobj)
67 # define SIOCIPFSET _IOWR('r', 89, struct ipfobj)
68 # define SIOCIPFL6 _IOWR('r', 90, int)
69 # define SIOCIPFLP _IOWR('r', 91, int)
70 # define SIOCIPFITER _IOWR('r', 92, struct ipfobj)
71 # define SIOCGENITER _IOWR('r', 93, struct ipfobj)
72 # define SIOCGTABL _IOWR('r', 94, struct ipfobj)
73 # define SIOCIPFDELTOK _IOWR('r', 95, int)
74 # define SIOCLOOKUPITER _IOWR('r', 96, struct ipfobj)
76 # define SIOCADAFR _IOW(r, 60, struct ipfobj)
77 # define SIOCRMAFR _IOW(r, 61, struct ipfobj)
78 # define SIOCSETFF _IOW(r, 62, u_int)
79 # define SIOCGETFF _IOR(r, 63, u_int)
80 # define SIOCGETFS _IOWR(r, 64, struct ipfobj)
81 # define SIOCIPFFL _IOWR(r, 65, int)
82 # define SIOCIPFFB _IOR(r, 66, int)
83 # define SIOCADIFR _IOW(r, 67, struct ipfobj)
84 # define SIOCRMIFR _IOW(r, 68, struct ipfobj)
85 # define SIOCSWAPA _IOR(r, 69, u_int)
86 # define SIOCINAFR _IOW(r, 70, struct ipfobj)
87 # define SIOCINIFR _IOW(r, 71, struct ipfobj)
88 # define SIOCFRENB _IOW(r, 72, u_int)
89 # define SIOCFRSYN _IOW(r, 73, u_int)
90 # define SIOCFRZST _IOWR(r, 74, struct ipfobj)
91 # define SIOCZRLST _IOWR(r, 75, struct ipfobj)
92 # define SIOCAUTHW _IOWR(r, 76, struct ipfobj)
93 # define SIOCAUTHR _IOWR(r, 77, struct ipfobj)
94 # define SIOCATHST _IOWR(r, 78, struct ipfobj)
95 # define SIOCSTLCK _IOWR(r, 79, u_int)
96 # define SIOCSTPUT _IOWR(r, 80, struct ipfobj)
97 # define SIOCSTGET _IOWR(r, 81, struct ipfobj)
98 # define SIOCSTGSZ _IOWR(r, 82, struct ipfobj)
99 # define SIOCGFRST _IOWR(r, 83, struct ipfobj)
100 # define SIOCSETLG _IOWR(r, 84, int)
101 # define SIOCGETLG _IOWR(r, 85, int)
102 # define SIOCFUNCL _IOWR(r, 86, struct ipfunc_resolve)
103 # define SIOCIPFGETNEXT _IOWR(r, 87, struct ipfobj)
104 # define SIOCIPFGET _IOWR(r, 88, struct ipfobj)
105 # define SIOCIPFSET _IOWR(r, 89, struct ipfobj)
106 # define SIOCIPFL6 _IOWR(r, 90, int)
107 # define SIOCIPFLP _IOWR(r, 91, int)
108 # define SIOCIPFITER _IOWR(r, 92, struct ipfobj)
109 # define SIOCGENITER _IOWR(r, 93, struct ipfobj)
110 # define SIOCGTABL _IOWR(r, 94, struct ipfobj)
111 # define SIOCIPFDELTOK _IOWR(r, 95, int)
112 # define SIOCLOOKUPITER _IOWR(r, 96, struct ipfobj)
114 #define SIOCADDFR SIOCADAFR
115 #define SIOCDELFR SIOCRMAFR
116 #define SIOCINSFR SIOCINAFR
117 # define SIOCIPFZONESET _IOWR('r', 97, struct ipfzoneobj)
120 * What type of table is getting flushed?
124 #define STATE_FLUSH 2
127 * What table flush options are available?
131 #define FLUSH_TABLE_ALL 1 /* Flush entire table */
132 #define FLUSH_TABLE_CLOSING 2 /* Flush "closing" entries" */
133 #define FLUSH_TABLE_EXTRA 3 /* Targetted flush: almost closed, long idle */
135 #define VALID_TABLE_FLUSH_OPT(x) ((x) >= 1 && (x) <= 3)
138 * Define the default hi and lo watermarks used when flushing the
139 * tables. The values represent percent full of respective tables.
142 #define NAT_FLUSH_HI 95
143 #define NAT_FLUSH_LO 75
145 #define ST_FLUSH_HI 95
146 #define ST_FLUSH_LO 75
149 * How full are the tables?
152 #define NAT_TAB_WATER_LEVEL(x) ((x)->ifs_nat_stats.ns_inuse * 100 \
153 / (x)->ifs_ipf_nattable_max)
155 #define ST_TAB_WATER_LEVEL(x) ((x)->ifs_ips_num * 100 \
156 / (x)->ifs_fr_statemax)
161 typedef struct ipf_stack ipf_stack_t
;
162 typedef struct fr_info fr_info_t
;
164 typedef int (* lookupfunc_t
) __P((void *, int, void *, fr_info_t
*, ipf_stack_t
*));
167 * i6addr is used as a container for both IPv4 and IPv6 addresses, as well
168 * as other types of objects, depending on its qualifier.
171 typedef union i6addr
{
176 lookupfunc_t lptr
[2];
178 #define in6_addr8 in6.s6_addr
180 typedef union i6addr
{
184 lookupfunc_t lptr
[2];
188 #define in4_addr in4.s_addr
189 #define iplookupnum i6[0]
190 #define iplookuptype i6[1]
192 * NOTE: These DO overlap the above on 64bit systems and this IS recognised.
194 #define iplookupptr vptr[0]
195 #define iplookupfunc lptr[1]
197 #define I60(x) (((i6addr_t *)(x))->i6[0])
198 #define I61(x) (((i6addr_t *)(x))->i6[1])
199 #define I62(x) (((i6addr_t *)(x))->i6[2])
200 #define I63(x) (((i6addr_t *)(x))->i6[3])
201 #define HI60(x) ntohl(((i6addr_t *)(x))->i6[0])
202 #define HI61(x) ntohl(((i6addr_t *)(x))->i6[1])
203 #define HI62(x) ntohl(((i6addr_t *)(x))->i6[2])
204 #define HI63(x) ntohl(((i6addr_t *)(x))->i6[3])
206 #define IP6_EQ(a,b) ((I63(a) == I63(b)) && (I62(a) == I62(b)) && \
207 (I61(a) == I61(b)) && (I60(a) == I60(b)))
208 #define IP6_NEQ(a,b) ((I63(a) != I63(b)) || (I62(a) != I62(b)) || \
209 (I61(a) != I61(b)) || (I60(a) != I60(b)))
210 #define IP6_ISZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) == 0)
211 #define IP6_NOTZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) != 0)
212 #define IP6_ISONES(a) ((I63(a) == 0xffffffff) && (I62(a) == 0xffffffff) && \
213 (I61(a) == 0xffffffff) && (I60(a) == 0xffffffff))
214 #define IP6_GT(a,b) (ntohl(HI60(a)) > ntohl(HI60(b)) || \
215 (HI60(a) == HI60(b) && \
216 (ntohl(HI61(a)) > ntohl(HI61(b)) || \
217 (HI61(a) == HI61(b) && \
218 (ntohl(HI62(a)) > ntohl(HI62(b)) || \
219 (HI62(a) == HI62(b) && \
220 ntohl(HI63(a)) > ntohl(HI63(b))))))))
221 #define IP6_LT(a,b) (ntohl(HI60(a)) < ntohl(HI60(b)) || \
222 (HI60(a) == HI60(b) && \
223 (ntohl(HI61(a)) < ntohl(HI61(b)) || \
224 (HI61(a) == HI61(b) && \
225 (ntohl(HI62(a)) < ntohl(HI62(b)) || \
226 (HI62(a) == HI62(b) && \
227 ntohl(HI63(a)) < ntohl(HI63(b))))))))
228 #define NLADD(n,x) htonl(ntohl(n) + (x))
230 { i6addr_t *_i6 = (i6addr_t *)(a); \
231 _i6->i6[3] = NLADD(_i6->i6[3], 1); \
232 if (_i6->i6[3] == 0) { \
233 _i6->i6[2] = NLADD(_i6->i6[2], 1); \
234 if (_i6->i6[2] == 0) { \
235 _i6->i6[1] = NLADD(_i6->i6[1], 1); \
236 if (_i6->i6[1] == 0) { \
237 _i6->i6[0] = NLADD(_i6->i6[0], 1); \
242 #define IP6_ADD(a,x,d) \
243 { i6addr_t *_s = (i6addr_t *)(a); \
244 i6addr_t *_d = (i6addr_t *)(d); \
245 _d->i6[3] = NLADD(_s->i6[3], x); \
246 if (ntohl(_d->i6[3]) < ntohl(_s->i6[3])) { \
247 _d->i6[2] = NLADD(_d->i6[2], 1); \
248 if (ntohl(_d->i6[2]) < ntohl(_s->i6[2])) { \
249 _d->i6[1] = NLADD(_d->i6[1], 1); \
250 if (ntohl(_d->i6[1]) < ntohl(_s->i6[1])) { \
251 _d->i6[0] = NLADD(_d->i6[0], 1); \
256 #define IP6_AND(a,b,d) { i6addr_t *_s1 = (i6addr_t *)(a); \
257 i6addr_t *_s2 = (i6addr_t *)(b); \
258 i6addr_t *_d = (i6addr_t *)(d); \
259 _d->i6[0] = _s1->i6[0] & _s2->i6[0]; \
260 _d->i6[1] = _s1->i6[1] & _s2->i6[1]; \
261 _d->i6[2] = _s1->i6[2] & _s2->i6[2]; \
262 _d->i6[3] = _s1->i6[3] & _s2->i6[3]; \
264 #define IP6_MASKEQ(a,m,b) \
265 (((I60(a) & I60(m)) == I60(b)) && \
266 ((I61(a) & I61(m)) == I61(b)) && \
267 ((I62(a) & I62(m)) == I62(b)) && \
268 ((I63(a) & I63(m)) == I63(b)))
269 #define IP6_MASKNEQ(a,m,b) \
270 (((I60(a) & I60(m)) != I60(b)) || \
271 ((I61(a) & I61(m)) != I61(b)) || \
272 ((I62(a) & I62(m)) != I62(b)) || \
273 ((I63(a) & I63(m)) != I63(b)))
274 #define IP6_MERGE(a,b,c) \
275 { i6addr_t *_d, *_s1, *_s2; \
276 _d = (i6addr_t *)(a); \
277 _s1 = (i6addr_t *)(b); \
278 _s2 = (i6addr_t *)(c); \
279 _d->i6[0] |= _s1->i6[0] & ~_s2->i6[0]; \
280 _d->i6[1] |= _s1->i6[1] & ~_s2->i6[1]; \
281 _d->i6[2] |= _s1->i6[2] & ~_s2->i6[2]; \
282 _d->i6[3] |= _s1->i6[3] & ~_s2->i6[3]; \
286 typedef struct fr_ip
{
287 u_32_t fi_v
:4; /* IP version */
288 u_32_t fi_xx
:4; /* spare */
289 u_32_t fi_tos
:8; /* IP packet TOS */
290 u_32_t fi_ttl
:8; /* IP packet TTL */
291 u_32_t fi_p
:8; /* IP packet protocol */
292 u_32_t fi_optmsk
; /* bitmask composed from IP options */
293 i6addr_t fi_src
; /* source address from packet */
294 i6addr_t fi_dst
; /* destination address from packet */
295 u_short fi_secmsk
; /* bitmask composed from IP security options */
296 u_short fi_auth
; /* authentication code from IP sec. options */
297 u_32_t fi_flx
; /* packet flags */
298 u_32_t fi_tcpmsk
; /* TCP options set/reset */
299 u_32_t fi_res1
; /* RESERVED */
305 #define FI_TCPUDP 0x0001 /* TCP/UCP implied comparison*/
306 #define FI_OPTIONS 0x0002
307 #define FI_FRAG 0x0004
308 #define FI_SHORT 0x0008
309 #define FI_NATED 0x0010
310 #define FI_MULTICAST 0x0020
311 #define FI_BROADCAST 0x0040
312 #define FI_MBCAST 0x0080
313 #define FI_STATE 0x0100
314 #define FI_BADNAT 0x0200
315 #define FI_BAD 0x0400
316 #define FI_OOW 0x0800 /* Out of state window, else match */
317 #define FI_ICMPERR 0x1000
318 #define FI_FRAGBODY 0x2000
319 #define FI_BADSRC 0x4000
320 #define FI_LOWTTL 0x8000
321 #define FI_CMP 0xcf03 /* Not FI_FRAG,FI_NATED,FI_FRAGTAIL,broadcast */
322 #define FI_ICMPCMP 0x0003 /* Flags we can check for ICMP error packets */
323 #define FI_WITH 0xeffe /* Not FI_TCPUDP */
324 #define FI_V6EXTHDR 0x10000
325 #define FI_COALESCE 0x20000
326 #define FI_ICMPQUERY 0x40000
327 #define FI_NEWNAT 0x80000
328 #define FI_MOREFRAG 0x100000
329 #define FI_NEG_OOW 0x10000000 /* packet underflows TCP window */
330 #define FI_NOCKSUM 0x20000000 /* don't do a L4 checksum validation */
331 #define FI_DONTCACHE 0x40000000 /* don't cache the result */
332 #define FI_IGNORE 0x80000000
334 #define fi_saddr fi_src.in4.s_addr
335 #define fi_daddr fi_dst.in4.s_addr
336 #define fi_srcnum fi_src.iplookupnum
337 #define fi_dstnum fi_dst.iplookupnum
338 #define fi_srctype fi_src.iplookuptype
339 #define fi_dsttype fi_dst.iplookuptype
340 #define fi_srcptr fi_src.iplookupptr
341 #define fi_dstptr fi_dst.iplookupptr
342 #define fi_srcfunc fi_src.iplookupfunc
343 #define fi_dstfunc fi_dst.iplookupfunc
347 * These are both used by the state and NAT code to indicate that one port or
348 * the other should be treated as a wildcard.
349 * NOTE: When updating, check bit masks in ip_state.h and update there too.
351 #define SI_W_SPORT 0x00000100
352 #define SI_W_DPORT 0x00000200
353 #define SI_WILDP (SI_W_SPORT|SI_W_DPORT)
354 #define SI_W_SADDR 0x00000400
355 #define SI_W_DADDR 0x00000800
356 #define SI_WILDA (SI_W_SADDR|SI_W_DADDR)
357 #define SI_NEWFR 0x00001000
358 #define SI_CLONE 0x00002000
359 #define SI_CLONED 0x00004000
365 void *fin_ifp
; /* interface packet is `on' */
366 fr_ip_t fin_fi
; /* IP Packet summary */
368 u_short fid_16
[2]; /* TCP/UDP ports, ICMP code/type */
371 int fin_out
; /* in or out ? 1 == out, 0 == in */
372 int fin_rev
; /* state only: 1 = reverse */
373 u_short fin_hlen
; /* length of IP header in bytes */
374 u_char fin_tcpf
; /* TCP header flags (SYN, ACK, etc) */
375 u_char fin_icode
; /* ICMP error to return */
376 u_32_t fin_rule
; /* rule # last matched */
377 char fin_group
[FR_GROUPLEN
]; /* group number, -1 for none */
378 struct frentry
*fin_fr
; /* last matching rule */
379 void *fin_dp
; /* start of data past IP header */
380 int fin_dlen
; /* length of data portion of packet */
382 int fin_ipoff
; /* # bytes from buffer start to hdr */
383 u_32_t fin_id
; /* IP packet id field */
385 int fin_depth
; /* Group nesting depth */
386 int fin_error
; /* Error code to return */
395 mb_t
**fin_mp
; /* pointer to pointer to mbuf */
396 mb_t
*fin_m
; /* pointer to mbuf */
398 mb_t
*fin_qfm
; /* pointer to mblk where pkt starts */
400 ipf_stack_t
*fin_ifs
;
407 #define fin_ip fin_ipu.fip_ip
408 #define fin_ip6 fin_ipu.fip_ip6
409 #define fin_v fin_fi.fi_v
410 #define fin_p fin_fi.fi_p
411 #define fin_flx fin_fi.fi_flx
412 #define fin_optmsk fin_fi.fi_optmsk
413 #define fin_secmsk fin_fi.fi_secmsk
414 #define fin_auth fin_fi.fi_auth
415 #define fin_src fin_fi.fi_src.in4
416 #define fin_saddr fin_fi.fi_saddr
417 #define fin_dst fin_fi.fi_dst.in4
418 #define fin_daddr fin_fi.fi_daddr
419 #define fin_data fin_dat.fid_16
420 #define fin_sport fin_dat.fid_16[0]
421 #define fin_dport fin_dat.fid_16[1]
422 #define fin_ports fin_dat.fid_32
425 # define fin_src6 fin_fi.fi_src
426 # define fin_dst6 fin_fi.fi_dst
427 # define fin_dstip6 fin_fi.fi_dst.in6
428 # define fin_srcip6 fin_fi.fi_src.in6
434 typedef struct frentry
*(*ipfunc_t
) __P((fr_info_t
*, u_32_t
*));
435 typedef int (*ipfuncinit_t
) __P((struct frentry
*,
438 typedef struct ipfunc_resolve
{
441 ipfuncinit_t ipfu_init
;
445 * Size for compares on fr_info structures
447 #define FI_CSIZE offsetof(fr_info_t, fin_icode)
448 #define FI_LCSIZE offsetof(fr_info_t, fin_dp)
451 * Size for copying cache fr_info structure
453 #define FI_COPYSIZE offsetof(fr_info_t, fin_dp)
456 * Structure for holding IPFilter's tag information
458 #define IPFTAG_LEN 16
462 char iptu_tag
[IPFTAG_LEN
];
467 #define ipt_tag ipt_un.iptu_tag
468 #define ipt_num ipt_un.iptu_num
472 * This structure is used to hold information about the next hop for where
473 * to forward a packet.
475 typedef struct frdest
{
478 char fd_ifname
[LIFNAMSIZ
];
481 #define fd_ip fd_ip6.in4
485 * This structure holds information about a port comparison.
487 typedef struct frpcmp
{
488 int frp_cmp
; /* data for port comparisons */
489 u_short frp_port
; /* top port for <> and >< */
490 u_short frp_top
; /* top port for <> and >< */
497 #define FR_GREATERT 4
499 #define FR_GREATERTE 6
500 #define FR_OUTRANGE 7
502 #define FR_INCRANGE 9
505 * Structure containing all the relevant TCP things that can be checked in
508 typedef struct frtuc
{
509 u_char ftu_tcpfm
; /* tcp flags mask */
510 u_char ftu_tcpf
; /* tcp flags */
515 #define ftu_scmp ftu_src.frp_cmp
516 #define ftu_dcmp ftu_dst.frp_cmp
517 #define ftu_sport ftu_src.frp_port
518 #define ftu_dport ftu_dst.frp_port
519 #define ftu_stop ftu_src.frp_top
520 #define ftu_dtop ftu_dst.frp_top
522 #define FR_TCPFMAX 0x3f
525 * This structure makes up what is considered to be the IPFilter specific
526 * matching components of a filter rule, as opposed to the data structures
527 * used to define the result which are in frentry_t and not here.
529 typedef struct fripf
{
531 fr_ip_t fri_mip
; /* mask structure */
533 u_short fri_icmpm
; /* data for ICMP packets (mask) */
537 int fri_satype
; /* addres type */
538 int fri_datype
; /* addres type */
539 int fri_sifpidx
; /* doing dynamic addressing */
540 int fri_difpidx
; /* index into fr_ifps[] to use when */
543 #define fri_dstnum fri_ip.fi_dstnum
544 #define fri_srcnum fri_mip.fi_srcnum
545 #define fri_dstptr fri_ip.fi_dstptr
546 #define fri_srcptr fri_mip.fi_srcptr
548 #define FRI_NORMAL 0 /* Normal address */
549 #define FRI_DYNAMIC 1 /* dynamic address */
550 #define FRI_LOOKUP 2 /* address is a pool # */
551 #define FRI_RANGE 3 /* address/mask is a range */
552 #define FRI_NETWORK 4 /* network address from if */
553 #define FRI_BROADCAST 5 /* broadcast address from if */
554 #define FRI_PEERADDR 6 /* Peer address for P-to-P */
555 #define FRI_NETMASKED 7 /* network address with netmask from if */
558 typedef struct frentry
* (* frentfunc_t
) __P((fr_info_t
*));
560 typedef struct frentry
{
562 struct frentry
*fr_next
;
563 struct frentry
**fr_grp
;
564 struct ipscan
*fr_isc
;
566 void *fr_ptr
; /* for use with fr_arg */
567 char *fr_comment
; /* text comment for rule */
568 int fr_ref
; /* reference count - for grouping */
569 int fr_statecnt
; /* state count - for limit rules */
571 * These are only incremented when a packet matches this rule and
572 * it is the last match
578 * For PPS rate limiting
580 struct timeval fr_lastpkt
;
587 frentfunc_t fru_func
;
591 * Fields after this may not change whilst in the kernel.
593 ipfunc_t fr_func
; /* call this function */
596 int fr_statemax
; /* max reference count */
597 int fr_flineno
; /* line number from conf file */
599 u_32_t fr_flags
; /* per-rule flags && options (see below) */
600 u_32_t fr_logtag
; /* user defined log tag # */
601 u_32_t fr_collect
; /* collection number */
602 u_int fr_arg
; /* misc. numeric arg for rule */
603 u_int fr_loglevel
; /* syslog log facility + priority */
604 u_int fr_age
[2]; /* non-TCP timeouts */
606 u_char fr_icode
; /* return ICMP code */
607 char fr_group
[FR_GROUPLEN
]; /* group to which this rule belongs */
608 char fr_grhead
[FR_GROUPLEN
]; /* group # which this rule starts */
610 char fr_ifnames
[4][LIFNAMSIZ
];
612 frdest_t fr_tifs
[2]; /* "to"/"reply-to" interface */
613 frdest_t fr_dif
; /* duplicate packet interface */
615 * This must be last and will change after loaded into the kernel.
617 u_int fr_cksum
; /* checksum on filter rules for performance */
620 #define fr_caddr fr_dun.fru_caddr
621 #define fr_data fr_dun.fru_data
622 #define fr_dfunc fr_dun.fru_func
623 #define fr_ipf fr_dun.fru_ipf
624 #define fr_ip fr_ipf->fri_ip
625 #define fr_mip fr_ipf->fri_mip
626 #define fr_icmpm fr_ipf->fri_icmpm
627 #define fr_icmp fr_ipf->fri_icmp
628 #define fr_tuc fr_ipf->fri_tuc
629 #define fr_satype fr_ipf->fri_satype
630 #define fr_datype fr_ipf->fri_datype
631 #define fr_sifpidx fr_ipf->fri_sifpidx
632 #define fr_difpidx fr_ipf->fri_difpidx
633 #define fr_proto fr_ip.fi_p
634 #define fr_mproto fr_mip.fi_p
635 #define fr_ttl fr_ip.fi_ttl
636 #define fr_mttl fr_mip.fi_ttl
637 #define fr_tos fr_ip.fi_tos
638 #define fr_mtos fr_mip.fi_tos
639 #define fr_tcpfm fr_tuc.ftu_tcpfm
640 #define fr_tcpf fr_tuc.ftu_tcpf
641 #define fr_scmp fr_tuc.ftu_scmp
642 #define fr_dcmp fr_tuc.ftu_dcmp
643 #define fr_dport fr_tuc.ftu_dport
644 #define fr_sport fr_tuc.ftu_sport
645 #define fr_stop fr_tuc.ftu_stop
646 #define fr_dtop fr_tuc.ftu_dtop
647 #define fr_dst fr_ip.fi_dst.in4
648 #define fr_daddr fr_ip.fi_dst.in4.s_addr
649 #define fr_src fr_ip.fi_src.in4
650 #define fr_saddr fr_ip.fi_src.in4.s_addr
651 #define fr_dmsk fr_mip.fi_dst.in4
652 #define fr_dmask fr_mip.fi_dst.in4.s_addr
653 #define fr_smsk fr_mip.fi_src.in4
654 #define fr_smask fr_mip.fi_src.in4.s_addr
655 #define fr_dstnum fr_ip.fi_dstnum
656 #define fr_srcnum fr_ip.fi_srcnum
657 #define fr_dsttype fr_ip.fi_dsttype
658 #define fr_srctype fr_ip.fi_srctype
659 #define fr_dstptr fr_mip.fi_dstptr
660 #define fr_srcptr fr_mip.fi_srcptr
661 #define fr_dstfunc fr_mip.fi_dstfunc
662 #define fr_srcfunc fr_mip.fi_srcfunc
663 #define fr_optbits fr_ip.fi_optmsk
664 #define fr_optmask fr_mip.fi_optmsk
665 #define fr_secbits fr_ip.fi_secmsk
666 #define fr_secmask fr_mip.fi_secmsk
667 #define fr_authbits fr_ip.fi_auth
668 #define fr_authmask fr_mip.fi_auth
669 #define fr_flx fr_ip.fi_flx
670 #define fr_mflx fr_mip.fi_flx
671 #define fr_ifname fr_ifnames[0]
672 #define fr_oifname fr_ifnames[2]
673 #define fr_ifa fr_ifas[0]
674 #define fr_oifa fr_ifas[2]
675 #define fr_tif fr_tifs[0]
676 #define fr_rif fr_tifs[1]
678 #define FR_NOLOGTAG 0
680 #define FR_CMPSIZ (sizeof(struct frentry) - \
681 offsetof(struct frentry, fr_func))
687 #define FR_T_IPF 1 /* IPF structures */
688 #define FR_T_BPFOPC 2 /* BPF opcode */
689 #define FR_T_CALLFUNC 3 /* callout to function in fr_func only */
690 #define FR_T_COMPIPF 4 /* compiled C code */
691 #define FR_T_BUILTIN 0x80000000 /* rule is in kernel space */
696 #define FR_CALL 0x00000 /* call rule */
697 #define FR_BLOCK 0x00001 /* do not allow packet to pass */
698 #define FR_PASS 0x00002 /* allow packet to pass */
699 #define FR_AUTH 0x00003 /* use authentication */
700 #define FR_PREAUTH 0x00004 /* require preauthentication */
701 #define FR_ACCOUNT 0x00005 /* Accounting rule */
702 #define FR_SKIP 0x00006 /* skip rule */
703 #define FR_DIVERT 0x00007 /* divert rule */
704 #define FR_CMDMASK 0x0000f
705 #define FR_LOG 0x00010 /* Log */
706 #define FR_LOGB 0x00011 /* Log-fail */
707 #define FR_LOGP 0x00012 /* Log-pass */
708 #define FR_LOGMASK (FR_LOG|FR_CMDMASK)
709 #define FR_CALLNOW 0x00020 /* call another function (fr_func) if matches */
710 #define FR_NOTSRCIP 0x00040
711 #define FR_NOTDSTIP 0x00080
712 #define FR_QUICK 0x00100 /* match & stop processing list */
713 #define FR_KEEPFRAG 0x00200 /* keep fragment information */
714 #define FR_KEEPSTATE 0x00400 /* keep `connection' state information */
715 #define FR_FASTROUTE 0x00800 /* bypass normal routing */
716 #define FR_RETRST 0x01000 /* Return TCP RST packet - reset connection */
717 #define FR_RETICMP 0x02000 /* Return ICMP unreachable packet */
718 #define FR_FAKEICMP 0x03000 /* Return ICMP unreachable with fake source */
719 #define FR_OUTQUE 0x04000 /* outgoing packets */
720 #define FR_INQUE 0x08000 /* ingoing packets */
721 #define FR_LOGBODY 0x10000 /* Log the body */
722 #define FR_LOGFIRST 0x20000 /* Log the first byte if state held */
723 #define FR_LOGORBLOCK 0x40000 /* block the packet if it can't be logged */
724 #define FR_DUP 0x80000 /* duplicate packet */
725 #define FR_FRSTRICT 0x100000 /* strict frag. cache */
726 #define FR_STSTRICT 0x200000 /* strict keep state */
727 #define FR_NEWISN 0x400000 /* new ISN for outgoing TCP */
728 #define FR_NOICMPERR 0x800000 /* do not match ICMP errors in state */
729 #define FR_STATESYNC 0x1000000 /* synchronize state to slave */
730 #define FR_NOMATCH 0x8000000 /* no match occured */
731 /* 0x10000000 FF_LOGPASS */
732 /* 0x20000000 FF_LOGBLOCK */
733 /* 0x40000000 FF_LOGNOMATCH */
734 /* 0x80000000 FF_BLOCKNONIP */
735 #define FR_COPIED 0x40000000 /* copied from user space */
736 #define FR_INACTIVE 0x80000000 /* only used when flush'ing rules */
738 #define FR_RETMASK (FR_RETICMP|FR_RETRST|FR_FAKEICMP)
739 #define FR_ISBLOCK(x) (((x) & FR_CMDMASK) == FR_BLOCK)
740 #define FR_ISPASS(x) (((x) & FR_CMDMASK) == FR_PASS)
741 #define FR_ISAUTH(x) (((x) & FR_CMDMASK) == FR_AUTH)
742 #define FR_ISPREAUTH(x) (((x) & FR_CMDMASK) == FR_PREAUTH)
743 #define FR_ISACCOUNT(x) (((x) & FR_CMDMASK) == FR_ACCOUNT)
744 #define FR_ISSKIP(x) (((x) & FR_CMDMASK) == FR_SKIP)
745 #define FR_ISNOMATCH(x) ((x) & FR_NOMATCH)
746 #define FR_INOUT (FR_INQUE|FR_OUTQUE)
749 * recognized flags for SIOCGETFF and SIOCSETFF, and get put in fr_flags
751 #define FF_LOGPASS 0x10000000
752 #define FF_LOGBLOCK 0x20000000
753 #define FF_LOGNOMATCH 0x40000000
754 #define FF_LOGGING (FF_LOGPASS|FF_LOGBLOCK|FF_LOGNOMATCH)
755 #define FF_BLOCKNONIP 0x80000000 /* Solaris2 Only */
759 * Structure that passes information on what/how to flush to the kernel.
761 typedef struct ipfflush
{
770 typedef struct ipfgetctl
{
771 u_int ipfg_min
; /* min value */
772 u_int ipfg_current
; /* current value */
773 u_int ipfg_max
; /* max value */
774 u_int ipfg_default
; /* default value */
775 u_int ipfg_steps
; /* value increments */
776 char ipfg_name
[40]; /* tag name for this control */
779 typedef struct ipfsetctl
{
780 int ipfs_which
; /* 0 = min 1 = current 2 = max 3 = default */
781 u_int ipfs_value
; /* min value */
782 char ipfs_name
[40]; /* tag name for this control */
787 * Some of the statistics below are in their own counters, but most are kept
788 * in this single structure so that they can all easily be collected and
789 * copied back as required.
791 * NOTE: when changing, keep in sync with kstats (below).
793 typedef struct filterstats
{
794 u_long fr_pass
; /* packets allowed */
795 u_long fr_block
; /* packets denied */
796 u_long fr_nom
; /* packets which don't match any rule */
797 u_long fr_short
; /* packets which are short */
798 u_long fr_ppkl
; /* packets allowed and logged */
799 u_long fr_bpkl
; /* packets denied and logged */
800 u_long fr_npkl
; /* packets unmatched and logged */
801 u_long fr_pkl
; /* packets logged */
802 u_long fr_skip
; /* packets to be logged but buffer full */
803 u_long fr_ret
; /* packets for which a return is sent */
804 u_long fr_acct
; /* packets for which counting was performed */
805 u_long fr_bnfr
; /* bad attempts to allocate fragment state */
806 u_long fr_nfr
; /* new fragment state kept */
807 u_long fr_cfr
; /* add new fragment state but complete pkt */
808 u_long fr_bads
; /* bad attempts to allocate packet state */
809 u_long fr_ads
; /* new packet state kept */
810 u_long fr_chit
; /* cached hit */
811 u_long fr_tcpbad
; /* TCP checksum check failures */
812 u_long fr_pull
[2]; /* good and bad pullup attempts */
813 u_long fr_badsrc
; /* source received doesn't match route */
814 u_long fr_badttl
; /* TTL in packet doesn't reach minimum */
815 u_long fr_bad
; /* bad IP packets to the filter */
816 u_long fr_ipv6
; /* IPv6 packets in/out */
817 u_long fr_ppshit
; /* dropped because of pps ceiling */
818 u_long fr_ipud
; /* IP id update failures */
822 * kstat "copy" of the above - keep in sync!
823 * also keep in sync with initialisation code in solaris.c, ipf_kstat_init().
825 typedef struct filter_kstats
{
826 kstat_named_t fks_pass
; /* see above for comments */
827 kstat_named_t fks_block
;
828 kstat_named_t fks_nom
;
829 kstat_named_t fks_short
;
830 kstat_named_t fks_ppkl
;
831 kstat_named_t fks_bpkl
;
832 kstat_named_t fks_npkl
;
833 kstat_named_t fks_pkl
;
834 kstat_named_t fks_skip
;
835 kstat_named_t fks_ret
;
836 kstat_named_t fks_acct
;
837 kstat_named_t fks_bnfr
;
838 kstat_named_t fks_nfr
;
839 kstat_named_t fks_cfr
;
840 kstat_named_t fks_bads
;
841 kstat_named_t fks_ads
;
842 kstat_named_t fks_chit
;
843 kstat_named_t fks_tcpbad
;
844 kstat_named_t fks_pull
[2];
845 kstat_named_t fks_badsrc
;
846 kstat_named_t fks_badttl
;
847 kstat_named_t fks_bad
;
848 kstat_named_t fks_ipv6
;
849 kstat_named_t fks_ppshit
;
850 kstat_named_t fks_ipud
;
854 * Log structure. Each packet header logged is prepended by one of these.
855 * Following this in the log records read from the device will be an ipflog
856 * structure which is then followed by any packet data.
858 typedef struct iplog
{
861 struct timeval ipl_time
;
863 struct iplog
*ipl_next
;
866 #define ipl_sec ipl_time.tv_sec
867 #define ipl_usec ipl_time.tv_usec
869 #define IPL_MAGIC 0x49504c4d /* 'IPLM' */
870 #define IPL_MAGIC_NAT 0x49504c4e /* 'IPLN' */
871 #define IPL_MAGIC_STATE 0x49504c53 /* 'IPLS' */
872 #define IPLOG_SIZE sizeof(iplog_t)
874 typedef struct ipflog
{
875 #if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199603)) || \
876 (defined(OpenBSD) && (OpenBSD >= 199603))
885 u_short fl_plen
; /* extra data after hlen */
886 u_short fl_loglevel
; /* syslog log level */
887 char fl_group
[FR_GROUPLEN
];
888 u_char fl_hlen
; /* length of IP headers saved */
890 u_char fl_xxx
[2]; /* pad */
891 char fl_ifname
[LIFNAMSIZ
];
895 # define IPF_LOGGING 0
897 #ifndef IPF_DEFAULT_PASS
898 # define IPF_DEFAULT_PASS FR_PASS
901 #define DEFAULT_IPFLOGSIZE 8192
902 #ifndef IPFILTER_LOGSIZE
903 # define IPFILTER_LOGSIZE DEFAULT_IPFLOGSIZE
905 # if IPFILTER_LOGSIZE < DEFAULT_IPFLOGSIZE
906 # error IPFILTER_LOGSIZE too small. Must be >= DEFAULT_IPFLOGSIZE
910 #define IPF_OPTCOPY 0x07ff00 /* bit mask of copied options */
913 * Device filenames for reading log information. Use ipf on Solaris2 because
914 * ipl is already a name used by something else.
918 # define IPL_NAME "/dev/ipf"
920 # define IPL_NAME "/dev/ipl"
924 * Pathnames for various IP Filter control devices. Used by LKM
925 * and userland, so defined here.
927 #define IPNAT_NAME "/dev/ipnat"
928 #define IPSTATE_NAME "/dev/ipstate"
929 #define IPAUTH_NAME "/dev/ipauth"
930 #define IPSYNC_NAME "/dev/ipsync"
931 #define IPSCAN_NAME "/dev/ipscan"
932 #define IPLOOKUP_NAME "/dev/iplookup"
934 #define IPL_LOGIPF 0 /* Minor device #'s for accessing logs */
936 #define IPL_LOGSTATE 2
937 #define IPL_LOGAUTH 3
938 #define IPL_LOGSYNC 4
939 #define IPL_LOGSCAN 5
940 #define IPL_LOGLOOKUP 6
941 #define IPL_LOGCOUNT 7
943 #define IPL_LOGSIZE (IPL_LOGMAX + 1)
944 #define IPL_LOGALL -1
945 #define IPL_LOGNONE -2
950 typedef struct friostat
{
951 struct filterstats f_st
[2];
952 struct frentry
*f_ipf
[2][2];
953 struct frentry
*f_acct
[2][2];
954 struct frentry
*f_ipf6
[2][2];
955 struct frentry
*f_acct6
[2][2];
956 struct frentry
*f_auth
;
957 struct frgroup
*f_groups
[IPL_LOGSIZE
][2];
960 int f_locks
[IPL_LOGMAX
];
963 int f_defpass
; /* default pass - from fr_pass */
964 int f_active
; /* 1 or 0 - active rule set */
965 int f_running
; /* 1 if running, else 0 */
966 int f_logging
; /* 1 if enabled, else 0 */
968 char f_version
[32]; /* version string */
971 #define f_fin f_ipf[0]
972 #define f_fin6 f_ipf6[0]
973 #define f_fout f_ipf[1]
974 #define f_fout6 f_ipf6[1]
975 #define f_acctin f_acct[0]
976 #define f_acctin6 f_acct6[0]
977 #define f_acctout f_acct[1]
978 #define f_acctout6 f_acct6[1]
980 #define IPF_FEAT_LKM 0x001
981 #define IPF_FEAT_LOG 0x002
982 #define IPF_FEAT_LOOKUP 0x004
983 #define IPF_FEAT_BPF 0x008
984 #define IPF_FEAT_COMPILED 0x010
985 #define IPF_FEAT_CKSUM 0x020
986 #define IPF_FEAT_SYNC 0x040
987 #define IPF_FEAT_SCAN 0x080
988 #define IPF_FEAT_IPV6 0x100
990 typedef struct optlist
{
997 * Group list structure.
999 typedef struct frgroup
{
1000 struct frgroup
*fg_next
;
1001 struct frentry
*fg_head
;
1002 struct frentry
*fg_start
;
1005 char fg_name
[FR_GROUPLEN
];
1008 #define FG_NAME(g) (*(g)->fg_name == '\0' ? "" : (g)->fg_name)
1012 * Used by state and NAT tables
1014 typedef struct icmpinfo
{
1020 typedef struct udpinfo
{
1026 typedef struct tcpdata
{
1035 #define TCP_WSCALE_MAX 14
1037 #define TCP_WSCALE_SEEN 0x00000001
1038 #define TCP_WSCALE_FIRST 0x00000002
1039 #define TCP_SACK_PERMIT 0x00000004
1042 typedef struct tcpinfo
{
1045 tcpdata_t ts_data
[2];
1050 * Structures to define a GRE header as seen in a packet.
1065 typedef struct grehdr
{
1067 struct grebits gru_bits
;
1074 #define gr_flags gr_un.gru_flags
1075 #define gr_bits gr_un.gru_bits
1076 #define gr_ptype gr_bits.grb_ptype
1077 #define gr_C gr_bits.grb_C
1078 #define gr_R gr_bits.grb_R
1079 #define gr_K gr_bits.grb_K
1080 #define gr_S gr_bits.grb_S
1081 #define gr_s gr_bits.grb_s
1082 #define gr_recur gr_bits.grb_recur
1083 #define gr_A gr_bits.grb_A
1084 #define gr_ver gr_bits.grb_ver
1087 * GRE information tracked by "keep state"
1089 typedef struct greinfo
{
1095 #define GRE_REV(x) ((ntohs(x) >> 13) & 7)
1099 * Format of an Authentication header
1101 typedef struct authhdr
{
1104 u_short ah_reserved
;
1107 /* Following the sequence number field is 0 or more bytes of */
1108 /* authentication data, as specified by ah_plen - RFC 2402. */
1113 * Timeout tail queue list member
1115 typedef struct ipftqent
{
1116 struct ipftqent
**tqe_pnext
;
1117 struct ipftqent
*tqe_next
;
1118 struct ipftq
*tqe_ifq
;
1119 void *tqe_parent
; /* pointer back to NAT/state struct */
1120 u_long tqe_die
; /* when this entriy is to die */
1123 int tqe_state
[2]; /* current state of this entry */
1126 #define TQE_RULEBASED 0x00000001
1130 * Timeout tail queue head for IPFilter
1132 typedef struct ipftq
{
1133 ipfmutex_t ifq_lock
;
1135 ipftqent_t
*ifq_head
;
1136 ipftqent_t
**ifq_tail
;
1137 struct ipftq
*ifq_next
;
1138 struct ipftq
**ifq_pnext
;
1143 #define IFQF_USER 0x01 /* User defined aging */
1144 #define IFQF_DELETE 0x02 /* Marked for deletion */
1145 #define IFQF_PROXY 0x04 /* Timeout queue in use by a proxy */
1147 #define IPF_HZ_MULT 1
1148 #define IPF_HZ_DIVIDE 2 /* How many times a second ipfilter */
1149 /* checks its timeout queues. */
1150 #define IPF_TTLVAL(x) (((x) / IPF_HZ_MULT) * IPF_HZ_DIVIDE)
1153 * Structure to define address for pool lookups.
1157 sa_family_t adf_family
;
1163 * Object structure description. For passing through in ioctls.
1165 typedef struct ipfobj
{
1166 u_32_t ipfo_rev
; /* IPFilter version number */
1167 u_32_t ipfo_size
; /* size of object at ipfo_ptr */
1168 void *ipfo_ptr
; /* pointer to object */
1169 int ipfo_type
; /* type of object being pointed to */
1170 int ipfo_offset
; /* bytes from ipfo_ptr where to start */
1171 u_char ipfo_xxxpad
[32]; /* reserved for future use */
1175 * ioctl struct for setting what zone further ioctls will act on. ipfz_gz is a
1176 * boolean: set it to 1 to operate on the GZ-controlled stack.
1178 typedef struct ipfzoneobj
{
1179 u_32_t ipfz_gz
; /* GZ stack boolean */
1180 char ipfz_zonename
[ZONENAME_MAX
]; /* zone to act on */
1183 #if defined(_KERNEL)
1184 /* Set ipfs_zoneid to this if no zone has been set: */
1185 #define IPFS_ZONE_UNSET -2
1187 typedef struct ipf_devstate
{
1188 zoneid_t ipfs_zoneid
;
1194 #define IPFOBJ_FRENTRY 0 /* struct frentry */
1195 #define IPFOBJ_IPFSTAT 1 /* struct friostat */
1196 #define IPFOBJ_IPFINFO 2 /* struct fr_info */
1197 #define IPFOBJ_AUTHSTAT 3 /* struct fr_authstat */
1198 #define IPFOBJ_FRAGSTAT 4 /* struct ipfrstat */
1199 #define IPFOBJ_IPNAT 5 /* struct ipnat */
1200 #define IPFOBJ_NATSTAT 6 /* struct natstat */
1201 #define IPFOBJ_STATESAVE 7 /* struct ipstate_save */
1202 #define IPFOBJ_NATSAVE 8 /* struct nat_save */
1203 #define IPFOBJ_NATLOOKUP 9 /* struct natlookup */
1204 #define IPFOBJ_IPSTATE 10 /* struct ipstate */
1205 #define IPFOBJ_STATESTAT 11 /* struct ips_stat */
1206 #define IPFOBJ_FRAUTH 12 /* struct frauth */
1207 #define IPFOBJ_TUNEABLE 13 /* struct ipftune */
1208 #define IPFOBJ_NAT 14 /* struct nat */
1209 #define IPFOBJ_IPFITER 15 /* struct ipfruleiter */
1210 #define IPFOBJ_GENITER 16 /* struct ipfgeniter */
1211 #define IPFOBJ_GTABLE 17 /* struct ipftable */
1212 #define IPFOBJ_LOOKUPITER 18 /* struct ipflookupiter */
1213 #define IPFOBJ_COUNT 19 /* How many #defines are above this? */
1216 typedef union ipftunevalptr
{
1220 u_short
*ipftp_short
;
1224 typedef struct ipftuneable
{
1225 ipftunevalptr_t ipft_una
;
1231 struct ipftuneable
*ipft_next
;
1234 #define ipft_addr ipft_una.ipftp_void
1235 #define ipft_plong ipft_una.ipftp_long
1236 #define ipft_pint ipft_una.ipftp_int
1237 #define ipft_pshort ipft_una.ipftp_short
1238 #define ipft_pchar ipft_una.ipftp_char
1240 #define IPFT_RDONLY 1 /* read-only */
1241 #define IPFT_WRDISABLED 2 /* write when disabled only */
1243 typedef union ipftuneval
{
1246 u_short ipftu_short
;
1250 typedef struct ipftune
{
1252 ipftuneval_t ipft_un
;
1260 #define ipft_vlong ipft_un.ipftu_long
1261 #define ipft_vint ipft_un.ipftu_int
1262 #define ipft_vshort ipft_un.ipftu_short
1263 #define ipft_vchar ipft_un.ipftu_char
1266 * ipfruleiter is iterator structure used for filter rules.
1268 typedef struct ipfruleiter
{
1271 char iri_group
[FR_GROUPLEN
];
1274 frentry_t
*iri_rule
;
1277 /* Values for iri_inout */
1284 * ipfgeniter is generic iterator structure used for nat rules,
1285 * hostmap entries and nat table entries.
1287 typedef struct ipfgeniter
{
1288 int igi_type
; /* type of data we're looking at */
1293 #define IPFGENITER_IPF 0
1294 #define IPFGENITER_NAT 1
1295 #define IPFGENITER_IPNAT 2
1296 #define IPFGENITER_FRAG 3
1297 #define IPFGENITER_AUTH 4
1298 #define IPFGENITER_STATE 5
1299 #define IPFGENITER_NATFRAG 6
1300 #define IPFGENITER_HOSTMAP 7
1301 #define IPFGENITER_LOOKUP 8
1303 typedef struct ipftable
{
1308 typedef struct ipftoken
{
1309 struct ipftoken
*ipt_next
;
1310 struct ipftoken
**ipt_pnext
;
1324 #define IPFSYNC_RESYNC 0
1325 #define IPFSYNC_NEWIFP 1
1326 #define IPFSYNC_OLDIFP 2
1333 /* HP-UX locking sequence deadlock detection module lock MAJOR ID */
1334 # define IPF_SMAJ 0 /* temp assignment XXX, not critical */
1337 #if !defined(CDEV_MAJOR) && defined (__FreeBSD_version) && \
1338 (__FreeBSD_version >= 220000)
1339 # define CDEV_MAJOR 79
1343 * Post NetBSD 1.2 has the PFIL interface for packet filters. This turns
1344 * on those hooks. We don't need any special mods in non-IP Filter code
1347 #if (defined(NetBSD) && (NetBSD > 199609) && (NetBSD <= 1991011)) || \
1348 (defined(NetBSD1_2) && NetBSD1_2 > 1) || \
1349 (defined(__FreeBSD__) && (__FreeBSD_version >= 500043))
1350 # if (NetBSD >= 199905)
1359 extern int fr_check
__P((struct ip
*, int, void *, int, mb_t
**, ipf_stack_t
*));
1360 extern int (*fr_checkp
) __P((ip_t
*, int, void *, int, mb_t
**, ipf_stack_t
*));
1361 extern int ipf_log
__P((void));
1362 extern struct ifnet
*get_unit
__P((char *, int, ipf_stack_t
*));
1363 extern char *get_ifname
__P((struct ifnet
*));
1364 # if defined(__NetBSD__) || defined(__OpenBSD__) || \
1365 (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000)
1366 extern int frrequest
__P((int, u_long
, caddr_t
, int, int, ipf_stack_t
*));
1368 extern int iplioctl
__P((int, ioctlcmd_t
, caddr_t
, int));
1370 extern int iplopen
__P((dev_t
, int));
1371 extern int iplclose
__P((dev_t
, int));
1372 extern void m_freem
__P((mb_t
*));
1373 #else /* #ifndef _KERNEL */
1374 extern phy_if_t get_unit
__P((char *, int, ipf_stack_t
*));
1375 # if defined(__NetBSD__) && defined(PFIL_HOOKS)
1376 extern void ipfilterattach
__P((int));
1378 extern int ipl_enable
__P((void));
1379 extern int ipl_disable
__P((void));
1381 extern int fr_check
__P((struct ip
*, int, void *, int, void *,
1382 mblk_t
**, ipf_stack_t
*));
1385 extern int iplioctl
__P((dev_t
, int, intptr_t, int, cred_t
*, int *));
1387 extern int iplioctl
__P((dev_t
, int, int *, int, cred_t
*, int *));
1389 # if SOLARIS2 >= 10 && defined(_KERNEL)
1390 extern int fr_make_rst
__P((fr_info_t
*));
1391 extern int fr_make_icmp
__P((fr_info_t
*));
1392 extern void fr_calc_chksum
__P((fr_info_t
*, mb_t
*));
1393 extern ipf_stack_t
*ipf_find_stack(const zoneid_t
, ipf_devstate_t
*);
1395 extern int iplopen
__P((dev_t
*, int, int, cred_t
*));
1396 extern int iplclose
__P((dev_t
, int, int, cred_t
*));
1397 extern int iplread
__P((dev_t
, uio_t
*, cred_t
*));
1398 extern int iplwrite
__P((dev_t
, uio_t
*, cred_t
*));
1401 extern int iplopen
__P((dev_t
, int, intptr_t, int));
1402 extern int iplclose
__P((dev_t
, int, int));
1403 extern int iplioctl
__P((dev_t
, int, caddr_t
, int));
1404 extern int iplread
__P((dev_t
, uio_t
*));
1405 extern int iplwrite
__P((dev_t
, uio_t
*));
1406 extern int iplselect
__P((dev_t
, int));
1408 extern int ipfsync
__P((ipf_stack_t
*));
1409 extern int fr_qout
__P((queue_t
*, mblk_t
*));
1411 extern int fr_check
__P((struct ip
*, int, void *, int, mb_t
**, ipf_stack_t
*));
1412 extern int (*fr_checkp
) __P((ip_t
*, int, void *, int, mb_t
**, ipf_stack_t
*));
1413 extern size_t mbufchainlen
__P((mb_t
*));
1415 # include <sys/cred.h>
1416 extern int iplioctl
__P((dev_t
, int, caddr_t
, int, cred_t
*, int *));
1417 extern int iplopen
__P((dev_t
*, int, int, cred_t
*));
1418 extern int iplclose
__P((dev_t
, int, int, cred_t
*));
1419 extern int iplread
__P((dev_t
, uio_t
*, cred_t
*));
1420 extern int iplwrite
__P((dev_t
, uio_t
*, cred_t
*));
1421 extern int ipfsync
__P((ipf_stack_t
*));
1422 extern int ipfilter_sgi_attach
__P((void));
1423 extern void ipfilter_sgi_detach
__P((void));
1424 extern void ipfilter_sgi_intfsync
__P((void));
1426 # ifdef IPFILTER_LKM
1427 extern int iplidentify
__P((char *));
1429 # if (_BSDI_VERSION >= 199510) || (__FreeBSD_version >= 220000) || \
1430 (NetBSD >= 199511) || defined(__OpenBSD__)
1431 # if defined(__NetBSD__) || (_BSDI_VERSION >= 199701) || \
1432 defined(__OpenBSD__) || (__FreeBSD_version >= 300000)
1433 # if (__FreeBSD_version >= 500024)
1434 # if (__FreeBSD_version >= 502116)
1435 extern int iplioctl
__P((struct cdev
*, u_long
, caddr_t
, int, struct thread
*));
1437 extern int iplioctl
__P((dev_t
, u_long
, caddr_t
, int, struct thread
*));
1438 # endif /* __FreeBSD_version >= 502116 */
1440 extern int iplioctl
__P((dev_t
, u_long
, caddr_t
, int, struct proc
*));
1441 # endif /* __FreeBSD_version >= 500024 */
1443 extern int iplioctl
__P((dev_t
, int, caddr_t
, int, struct proc
*));
1445 # if (__FreeBSD_version >= 500024)
1446 # if (__FreeBSD_version >= 502116)
1447 extern int iplopen
__P((struct cdev
*, int, int, struct thread
*));
1448 extern int iplclose
__P((struct cdev
*, int, int, struct thread
*));
1450 extern int iplopen
__P((dev_t
, int, int, struct thread
*));
1451 extern int iplclose
__P((dev_t
, int, int, struct thread
*));
1452 # endif /* __FreeBSD_version >= 502116 */
1454 extern int iplopen
__P((dev_t
, int, int, struct proc
*));
1455 extern int iplclose
__P((dev_t
, int, int, struct proc
*));
1456 # endif /* __FreeBSD_version >= 500024 */
1459 extern int iplioctl
__P((struct inode
*, struct file
*, u_int
, u_long
));
1461 extern int iplopen
__P((dev_t
, int));
1462 extern int iplclose
__P((dev_t
, int));
1463 extern int iplioctl
__P((dev_t
, int, caddr_t
, int));
1465 # endif /* (_BSDI_VERSION >= 199510) */
1467 # if (__FreeBSD_version >= 502116)
1468 extern int iplread
__P((struct cdev
*, struct uio
*, int));
1469 extern int iplwrite
__P((struct cdev
*, struct uio
*, int));
1471 extern int iplread
__P((dev_t
, struct uio
*, int));
1472 extern int iplwrite
__P((dev_t
, struct uio
*, int));
1473 # endif /* __FreeBSD_version >= 502116 */
1476 extern int iplread
__P((dev_t
, struct uio
*));
1477 extern int iplwrite
__P((dev_t
, struct uio
*));
1479 # endif /* BSD >= 199306 */
1480 # endif /* __ sgi */
1481 # endif /* MENTAT */
1483 #endif /* #ifndef _KERNEL */
1485 extern char *memstr
__P((char *, char *, int, int));
1486 extern int count4bits
__P((u_32_t
));
1487 extern int count6bits
__P((u_32_t
*));
1488 extern int frrequest
__P((int, ioctlcmd_t
, caddr_t
, int, int, ipf_stack_t
*));
1489 extern char *getifname
__P((struct ifnet
*));
1490 extern int iplattach
__P((ipf_stack_t
*));
1491 extern int ipldetach
__P((ipf_stack_t
*));
1492 extern u_short ipf_cksum
__P((u_short
*, int));
1493 extern int copyinptr
__P((void *, void *, size_t));
1494 extern int copyoutptr
__P((void *, void *, size_t));
1495 extern int fr_fastroute
__P((mb_t
*, mb_t
**, fr_info_t
*, frdest_t
*));
1496 extern int fr_inobj
__P((void *, void *, int));
1497 extern int fr_inobjsz
__P((void *, void *, int, int));
1498 extern int fr_ioctlswitch
__P((int, void *, ioctlcmd_t
, int, int, void *,
1500 extern int fr_ipftune
__P((ioctlcmd_t
, void *, ipf_stack_t
*));
1501 extern int fr_outobj
__P((void *, void *, int));
1502 extern int fr_outobjsz
__P((void *, void *, int, int));
1503 extern void *fr_pullup
__P((mb_t
*, fr_info_t
*, int));
1504 extern void fr_resolvedest
__P((struct frdest
*, int, ipf_stack_t
*));
1505 extern int fr_resolvefunc
__P((void *));
1506 extern void *fr_resolvenic
__P((char *, int, ipf_stack_t
*));
1507 extern int fr_send_icmp_err
__P((int, fr_info_t
*, int));
1508 extern int fr_send_reset
__P((fr_info_t
*));
1509 #if (__FreeBSD_version < 490000) || !defined(_KERNEL)
1510 extern int ppsratecheck
__P((struct timeval
*, int *, int));
1512 extern ipftq_t
*fr_addtimeoutqueue
__P((ipftq_t
**, u_int
, ipf_stack_t
*));
1513 extern void fr_deletequeueentry
__P((ipftqent_t
*));
1514 extern int fr_deletetimeoutqueue
__P((ipftq_t
*));
1515 extern void fr_freetimeoutqueue
__P((ipftq_t
*, ipf_stack_t
*));
1516 extern void fr_movequeue
__P((ipftqent_t
*, ipftq_t
*, ipftq_t
*,
1518 extern void fr_queueappend
__P((ipftqent_t
*, ipftq_t
*, void *,
1520 extern void fr_queueback
__P((ipftqent_t
*, ipf_stack_t
*));
1521 extern void fr_queuefront
__P((ipftqent_t
*));
1522 extern void fr_checkv4sum
__P((fr_info_t
*));
1523 extern int fr_checkl4sum
__P((fr_info_t
*));
1524 extern int fr_ifpfillv4addr
__P((int, struct sockaddr_in
*,
1525 struct sockaddr_in
*, struct in_addr
*,
1527 extern int fr_coalesce
__P((fr_info_t
*));
1529 extern void fr_checkv6sum
__P((fr_info_t
*));
1530 extern int fr_ifpfillv6addr
__P((int, struct sockaddr_in6
*,
1531 struct sockaddr_in6
*, struct in_addr
*,
1535 #define IPFILTER_COMPAT
1536 extern int fr_incomptrans
__P((ipfobj_t
*, void *));
1537 extern int fr_outcomptrans
__P((ipfobj_t
*, void *));
1539 extern int fr_addipftune
__P((ipftuneable_t
*, ipf_stack_t
*));
1540 extern int fr_delipftune
__P((ipftuneable_t
*, ipf_stack_t
*));
1542 extern int frflush
__P((minor_t
, int, int, ipf_stack_t
*));
1543 extern void frsync
__P((int, int, void *, char *, ipf_stack_t
*));
1545 extern void fr_ifindexsync
__P((void *, void *, ipf_stack_t
*));
1547 extern frgroup_t
*fr_addgroup
__P((char *, void *, u_32_t
, minor_t
, int,
1549 extern int fr_derefrule
__P((frentry_t
**, ipf_stack_t
*));
1550 extern void fr_delgroup
__P((char *, minor_t
, int, ipf_stack_t
*));
1551 extern frgroup_t
*fr_findgroup
__P((char *, minor_t
, int, frgroup_t
***,
1554 extern int fr_loginit
__P((ipf_stack_t
*));
1555 extern int ipflog_clear
__P((minor_t
, ipf_stack_t
*));
1556 extern int ipflog_read
__P((minor_t
, struct uio
*, ipf_stack_t
*));
1557 extern int ipflog
__P((fr_info_t
*, u_int
));
1558 extern int ipllog
__P((int, fr_info_t
*, void **, size_t *, int *, int,
1560 extern void fr_logunload
__P((ipf_stack_t
*));
1562 extern frentry_t
*fr_acctpkt
__P((fr_info_t
*, u_32_t
*));
1563 extern int fr_copytolog
__P((int, char *, int));
1564 extern u_short fr_cksum
__P((mb_t
*, ip_t
*, int, void *));
1565 extern void fr_deinitialise
__P((ipf_stack_t
*));
1566 extern frentry_t
*fr_dolog
__P((fr_info_t
*, u_32_t
*));
1567 extern frentry_t
*fr_dstgrpmap
__P((fr_info_t
*, u_32_t
*));
1568 extern void fr_fixskip
__P((frentry_t
**, frentry_t
*, int));
1569 extern void fr_forgetifp
__P((void *, ipf_stack_t
*));
1570 extern frentry_t
*fr_getrulen
__P((int, char *, u_32_t
,
1572 extern void fr_getstat
__P((struct friostat
*, ipf_stack_t
*));
1573 extern int fr_ifpaddr
__P((int, int, void *,
1574 struct in_addr
*, struct in_addr
*,
1576 extern int fr_initialise
__P((ipf_stack_t
*));
1577 extern int fr_lock
__P((caddr_t
, int *));
1578 extern int fr_makefrip
__P((int, ip_t
*, fr_info_t
*));
1579 extern int fr_matchtag
__P((ipftag_t
*, ipftag_t
*));
1580 extern int fr_matchicmpqueryreply
__P((int, icmpinfo_t
*,
1581 struct icmp
*, int));
1582 extern u_32_t fr_newisn
__P((fr_info_t
*));
1583 extern u_short fr_nextipid
__P((fr_info_t
*));
1584 extern int fr_rulen
__P((int, frentry_t
*, ipf_stack_t
*));
1585 extern int fr_scanlist
__P((fr_info_t
*, u_32_t
));
1586 extern frentry_t
*fr_srcgrpmap
__P((fr_info_t
*, u_32_t
*));
1587 extern int fr_tcpudpchk
__P((fr_info_t
*, frtuc_t
*));
1588 extern int fr_verifysrc
__P((fr_info_t
*fin
));
1589 extern int fr_zerostats
__P((char *, ipf_stack_t
*));
1590 extern ipftoken_t
*ipf_findtoken
__P((int, int, void *, ipf_stack_t
*));
1591 extern int ipf_getnextrule
__P((ipftoken_t
*, void *,
1593 extern void ipf_expiretokens
__P((ipf_stack_t
*));
1594 extern void ipf_freetoken
__P((ipftoken_t
*, ipf_stack_t
*));
1595 extern int ipf_deltoken
__P((int, int, void *, ipf_stack_t
*));
1596 extern int ipf_genericiter
__P((void *, int, void *, ipf_stack_t
*));
1597 extern int ipf_extraflush
__P((int, ipftq_t
*, ipftq_t
*, ipf_stack_t
*));
1598 extern int ipf_flushclosing
__P((int, int, ipftq_t
*, ipftq_t
*, ipf_stack_t
*));
1599 extern int ipf_earlydrop
__P((int, ipftq_t
*, int, ipf_stack_t
*));
1602 extern u_32_t ipf_random
__P((void));
1605 #if defined(_KERNEL)
1606 extern int fr_setzoneid
__P((ipf_devstate_t
*, void *));
1609 extern char ipfilter_version
[];
1611 extern int icmptoicmp6types
[ICMP_MAXTYPE
+1];
1612 extern int icmptoicmp6unreach
[ICMP_MAX_UNREACH
];
1613 extern int icmpreplytype6
[ICMP6_MAXTYPE
+ 1];
1615 extern int icmpreplytype4
[ICMP_MAXTYPE
+ 1];
1616 extern frentry_t
*ipfrule_match
__P((fr_info_t
*));
1618 extern void ipftuneable_alloc(ipf_stack_t
*);
1619 extern void ipftuneable_free(ipf_stack_t
*);
1621 #endif /* __IP_FIL_H__ */