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source: rtems/cpukit/libnetworking/netinet/in.h @ cf29bcb9

4.104.114.84.95

Last change on this file since cf29bcb9 was cf29bcb9, checked in by Ralf Corsepius <ralf.corsepius@…>, on 05/08/05 at 06:40:09
Cosmetics from FreeBSD.
Property mode set to `100644`
File size: 17.2 KB

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1	/*
2	* Copyright (c) 1982, 1986, 1990, 1993
3	* The Regents of the University of California. All rights reserved.
4	*
5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions
7	* are met:
8	* 1. Redistributions of source code must retain the above copyright
9	* notice, this list of conditions and the following disclaimer.
10	* 2. Redistributions in binary form must reproduce the above copyright
11	* notice, this list of conditions and the following disclaimer in the
12	* documentation and/or other materials provided with the distribution.
13	* 4. Neither the name of the University nor the names of its contributors
14	* may be used to endorse or promote products derived from this software
15	* without specific prior written permission.
16	*
17	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27	* SUCH DAMAGE.
28	*
29	* @(#)in.h 8.3 (Berkeley) 1/3/94
30	* $FreeBSD: src/sys/netinet/in.h,v 1.90 2005/02/22 13:04:03 glebius Exp $
31	*/
32
33	/*
34	* $Id$
35	*/
36
37	#ifndef _NETINET_IN_H_
38	#define _NETINET_IN_H_
39
40	#include <machine/endian.h>
41
42	/* Protocols common to RFC 1700, POSIX, and X/Open. */
43	#define IPPROTO_IP 0 /* dummy for IP */
44	#define IPPROTO_ICMP 1 /* control message protocol */
45	#define IPPROTO_TCP 6 /* tcp */
46	#define IPPROTO_UDP 17 /* user datagram protocol */
47
48	/*
49	* Constants and structures defined by the internet system,
50	* Per RFC 790, September 1981, and numerous additions.
51	*/
52
53	/*
54	* Protocols (RFC 1700)
55	*/
56	#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
57	#define IPPROTO_IGMP 2 /* group mgmt protocol */
58	#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
59	#define IPPROTO_IPV4 4 /* IPv4 encapsulation */
60	#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
61	#define IPPROTO_ST 7 /* Stream protocol II */
62	#define IPPROTO_EGP 8 /* exterior gateway protocol */
63	#define IPPROTO_PIGP 9 /* private interior gateway */
64	#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
65	#define IPPROTO_NVPII 11 /* network voice protocol*/
66	#define IPPROTO_PUP 12 /* pup */
67	#define IPPROTO_ARGUS 13 /* Argus */
68	#define IPPROTO_EMCON 14 /* EMCON */
69	#define IPPROTO_XNET 15 /* Cross Net Debugger */
70	#define IPPROTO_CHAOS 16 /* Chaos*/
71	#define IPPROTO_MUX 18 /* Multiplexing */
72	#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
73	#define IPPROTO_HMP 20 /* Host Monitoring */
74	#define IPPROTO_PRM 21 /* Packet Radio Measurement */
75	#define IPPROTO_IDP 22 /* xns idp */
76	#define IPPROTO_TRUNK1 23 /* Trunk-1 */
77	#define IPPROTO_TRUNK2 24 /* Trunk-2 */
78	#define IPPROTO_LEAF1 25 /* Leaf-1 */
79	#define IPPROTO_LEAF2 26 /* Leaf-2 */
80	#define IPPROTO_RDP 27 /* Reliable Data */
81	#define IPPROTO_IRTP 28 /* Reliable Transaction */
82	#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
83	#define IPPROTO_BLT 30 /* Bulk Data Transfer */
84	#define IPPROTO_NSP 31 /* Network Services */
85	#define IPPROTO_INP 32 /* Merit Internodal */
86	#define IPPROTO_SEP 33 /* Sequential Exchange */
87	#define IPPROTO_3PC 34 /* Third Party Connect */
88	#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
89	#define IPPROTO_XTP 36 /* XTP */
90	#define IPPROTO_DDP 37 /* Datagram Delivery */
91	#define IPPROTO_CMTP 38 /* Control Message Transport */
92	#define IPPROTO_TPXX 39 /* TP++ Transport */
93	#define IPPROTO_IL 40 /* IL transport protocol */
94	#define IPPROTO_IPV6 41 /* IP6 header */
95	#define IPPROTO_SDRP 42 /* Source Demand Routing */
96	#define IPPROTO_ROUTING 43 /* IP6 routing header */
97	#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
98	#define IPPROTO_IDRP 45 /* InterDomain Routing*/
99	#define IPPROTO_RSVP 46 /* resource reservation */
100	#define IPPROTO_GRE 47 /* General Routing Encap. */
101	#define IPPROTO_MHRP 48 /* Mobile Host Routing */
102	#define IPPROTO_BHA 49 /* BHA */
103	#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
104	#define IPPROTO_AH 51 /* IP6 Auth Header */
105	#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */
106	#define IPPROTO_SWIPE 53 /* IP with encryption */
107	#define IPPROTO_NHRP 54 /* Next Hop Resolution */
108	#define IPPROTO_MOBILE 55 /* IP Mobility */
109	#define IPPROTO_TLSP 56 /* Transport Layer Security */
110	#define IPPROTO_SKIP 57 /* SKIP */
111	#define IPPROTO_ICMPV6 58 /* ICMP6 */
112	#define IPPROTO_NONE 59 /* IP6 no next header */
113	#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
114	#define IPPROTO_AHIP 61 /* any host internal protocol */
115	#define IPPROTO_CFTP 62 /* CFTP */
116	#define IPPROTO_HELLO 63 /* "hello" routing protocol */
117	#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */
118	#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */
119	#define IPPROTO_RVD 66 /* Remote Virtual Disk */
120	#define IPPROTO_IPPC 67 /* Pluribus Packet Core */
121	#define IPPROTO_ADFS 68 /* Any distributed FS */
122	#define IPPROTO_SATMON 69 /* Satnet Monitoring */
123	#define IPPROTO_VISA 70 /* VISA Protocol */
124	#define IPPROTO_IPCV 71 /* Packet Core Utility */
125	#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */
126	#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */
127	#define IPPROTO_WSN 74 /* Wang Span Network */
128	#define IPPROTO_PVP 75 /* Packet Video Protocol */
129	#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */
130	#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */
131	#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */
132	#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
133	#define IPPROTO_EON 80 /* ISO cnlp */
134	#define IPPROTO_VMTP 81 /* VMTP */
135	#define IPPROTO_SVMTP 82 /* Secure VMTP */
136	#define IPPROTO_VINES 83 /* Banyon VINES */
137	#define IPPROTO_TTP 84 /* TTP */
138	#define IPPROTO_IGP 85 /* NSFNET-IGP */
139	#define IPPROTO_DGP 86 /* dissimilar gateway prot. */
140	#define IPPROTO_TCF 87 /* TCF */
141	#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */
142	#define IPPROTO_OSPFIGP 89 /* OSPFIGP */
143	#define IPPROTO_SRPC 90 /* Strite RPC protocol */
144	#define IPPROTO_LARP 91 /* Locus Address Resoloution */
145	#define IPPROTO_MTP 92 /* Multicast Transport */
146	#define IPPROTO_AX25 93 /* AX.25 Frames */
147	#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */
148	#define IPPROTO_MICP 95 /* Mobile Int.ing control */
149	#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */
150	#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */
151	#define IPPROTO_ENCAP 98 /* encapsulation header */
152	#define IPPROTO_APES 99 /* any private encr. scheme */
153	#define IPPROTO_GMTP 100 /* GMTP*/
154	/* 101-254: Unassigned */
155	/* 255: Reserved */
156	/* BSD Private, local use, namespace incursion */
157	#define IPPROTO_DIVERT 254 /* divert pseudo-protocol */
158	#define IPPROTO_RAW 255 /* raw IP packet */
159	#define IPPROTO_MAX 256
160
161	/*
162	* Merged from FreeBSD 1.78 of this file so Python compiles.
163	* This is a size value for functions such as inet_ntop().
164	*/
165	#define INET_ADDRSTRLEN 16
166
167	/*
168	* Local port number conventions:
169	*
170	* When a user does a bind(2) or connect(2) with a port number of zero,
171	* a non-conflicting local port address is chosen.
172	* The default range is IPPORT_RESERVED through
173	* IPPORT_USERRESERVED, although that is settable by sysctl.
174	*
175	* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
176	* default assignment range.
177	*
178	* The value IP_PORTRANGE_DEFAULT causes the default behavior.
179	*
180	* The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
181	* into the "high" range. These are reserved for client outbound connections
182	* which do not want to be filtered by any firewalls. Note that by default
183	* this is the same as IP_PORTRANGE_DEFAULT.
184	*
185	* The value IP_PORTRANGE_LOW changes the range to the "low" are
186	* that is (by convention) restricted to privileged processes. This
187	* convention is based on "vouchsafe" principles only. It is only secure
188	* if you trust the remote host to restrict these ports.
189	*
190	* The default range of ports and the high range can be changed by
191	* sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
192	*
193	* Changing those values has bad security implications if you are
194	* using a a stateless firewall that is allowing packets outside of that
195	* range in order to allow transparent outgoing connections.
196	*
197	* Such a firewall configuration will generally depend on the use of these
198	* default values. If you change them, you may find your Security
199	* Administrator looking for you with a heavy object.
200	*/
201
202	/*
203	* Ports < IPPORT_RESERVED are reserved for
204	* privileged processes (e.g. root). (IP_PORTRANGE_LOW)
205	* Ports > IPPORT_USERRESERVED are reserved
206	* for servers, not necessarily privileged. (IP_PORTRANGE_DEFAULT)
207	*/
208	#define IPPORT_RESERVED 1024
209	#define IPPORT_USERRESERVED 5000
210
211	/*
212	* Default local port range to use by setting IP_PORTRANGE_HIGH
213	*/
214	#define IPPORT_HIFIRSTAUTO 40000
215	#define IPPORT_HILASTAUTO 44999
216
217	/*
218	* Scanning for a free reserved port return a value below IPPORT_RESERVED,
219	* but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
220	* 512, but that conflicts with some well-known-services that firewalls may
221	* have a fit if we use.
222	*/
223	#define IPPORT_RESERVEDSTART 600
224	#define BYTE_PACK __attribute__((packed))
225	/*
226	* Internet address (a structure for historical reasons)
227	*/
228	struct in_addr {
229	u_long s_addr BYTE_PACK;
230	};
231
232	/*
233	* Definitions of bits in internet address integers.
234	* On subnets, the decomposition of addresses to host and net parts
235	* is done according to subnet mask, not the masks here.
236	*/
237	#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0)
238	#define IN_CLASSA_NET 0xff000000
239	#define IN_CLASSA_NSHIFT 24
240	#define IN_CLASSA_HOST 0x00ffffff
241	#define IN_CLASSA_MAX 128
242
243	#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000)
244	#define IN_CLASSB_NET 0xffff0000
245	#define IN_CLASSB_NSHIFT 16
246	#define IN_CLASSB_HOST 0x0000ffff
247	#define IN_CLASSB_MAX 65536
248
249	#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
250	#define IN_CLASSC_NET 0xffffff00
251	#define IN_CLASSC_NSHIFT 8
252	#define IN_CLASSC_HOST 0x000000ff
253
254	#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
255	#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
256	#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
257	#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
258	#define IN_MULTICAST(i) IN_CLASSD(i)
259
260	#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
261	#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
262
263	#define INADDR_ANY (u_long)0x00000000
264	#define INADDR_BROADCAST (u_long)0xffffffff /* must be masked */
265	#ifndef _KERNEL
266	#define INADDR_NONE 0xffffffff /* -1 return */
267	#endif
268
269	#define INADDR_UNSPEC_GROUP (u_long)0xe0000000 /* 224.0.0.0 */
270	#define INADDR_ALLHOSTS_GROUP (u_long)0xe0000001 /* 224.0.0.1 */
271	#define INADDR_ALLRTRS_GROUP (u_long)0xe0000002 /* 224.0.0.2 */
272	#define INADDR_MAX_LOCAL_GROUP (u_long)0xe00000ff /* 224.0.0.255 */
273
274	#define IN_LOOPBACKNET 127 /* official! */
275	#ifndef INADDR_LOOPBACK
276	#define INADDR_LOOPBACK (u_long)0x7F000001 /* 127.0.0.1 */
277	#endif
278
279	/*
280	* Socket address, internet style.
281	*/
282	struct sockaddr_in {
283	u_char sin_len;
284	u_char sin_family;
285	u_short sin_port;
286	struct in_addr sin_addr;
287	char sin_zero[8];
288	};
289
290	/*
291	* Structure used to describe IP options.
292	* Used to store options internally, to pass them to a process,
293	* or to restore options retrieved earlier.
294	* The ip_dst is used for the first-hop gateway when using a source route
295	* (this gets put into the header proper).
296	*/
297	struct ip_opts {
298	struct in_addr ip_dst; /* first hop, 0 w/o src rt */
299	char ip_opts[40]; /* actually variable in size */
300	};
301
302	/*
303	* Options for use with [gs]etsockopt at the IP level.
304	* First word of comment is data type; bool is stored in int.
305	*/
306	#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
307	#define IP_HDRINCL 2 /* int; header is included with data */
308	#define IP_TOS 3 /* int; IP type of service and preced. */
309	#define IP_TTL 4 /* int; IP time to live */
310	#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
311	#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
312	#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
313	#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */
314	#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
315	#define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */
316	#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
317	#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
318	#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
319	#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
320	#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
321	#define IP_RSVP_ON 15 /* enable RSVP in kernel */
322	#define IP_RSVP_OFF 16 /* disable RSVP in kernel */
323	#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
324	#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
325	#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
326	#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
327
328	#define IP_FW_ADD 50 /* add a firewall rule to chain */
329	#define IP_FW_DEL 51 /* delete a firewall rule from chain */
330	#define IP_FW_FLUSH 52 /* flush firewall rule chain */
331	#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
332	#define IP_FW_GET 54 /* get entire firewall rule chain */
333	#define IP_NAT 55 /* set/get NAT opts */
334
335	/*
336	* Defaults and limits for options
337	*/
338	#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
339	#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
340	#define IP_MAX_MEMBERSHIPS 20 /* per socket */
341
342	/*
343	* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
344	*/
345	struct ip_mreq {
346	struct in_addr imr_multiaddr; /* IP multicast address of group */
347	struct in_addr imr_interface; /* local IP address of interface */
348	};
349
350	/*
351	* Argument for IP_PORTRANGE:
352	* - which range to search when port is unspecified at bind() or connect()
353	*/
354	#define IP_PORTRANGE_DEFAULT 0 /* default range */
355	#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
356	#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
357
358	/*
359	* Definitions for inet sysctl operations.
360	*
361	* Third level is protocol number.
362	* Fourth level is desired variable within that protocol.
363	*/
364	#define IPPROTO_MAXID (IPPROTO_IDP + 1) /* don't list to IPPROTO_MAX */
365
366	#define CTL_IPPROTO_NAMES { \
367	{ "ip", CTLTYPE_NODE }, \
368	{ "icmp", CTLTYPE_NODE }, \
369	{ "igmp", CTLTYPE_NODE }, \
370	{ "ggp", CTLTYPE_NODE }, \
371	{ 0, 0 }, \
372	{ 0, 0 }, \
373	{ "tcp", CTLTYPE_NODE }, \
374	{ 0, 0 }, \
375	{ "egp", CTLTYPE_NODE }, \
376	{ 0, 0 }, \
377	{ 0, 0 }, \
378	{ 0, 0 }, \
379	{ "pup", CTLTYPE_NODE }, \
380	{ 0, 0 }, \
381	{ 0, 0 }, \
382	{ 0, 0 }, \
383	{ 0, 0 }, \
384	{ "udp", CTLTYPE_NODE }, \
385	{ 0, 0 }, \
386	{ 0, 0 }, \
387	{ 0, 0 }, \
388	{ 0, 0 }, \
389	{ "idp", CTLTYPE_NODE }, \
390	}
391
392	/*
393	* Names for IP sysctl objects
394	*/
395	#define IPCTL_FORWARDING 1 /* act as router */
396	#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
397	#define IPCTL_DEFTTL 3 /* default TTL */
398	#ifdef notyet
399	#define IPCTL_DEFMTU 4 /* default MTU */
400	#endif
401	#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
402	#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
403	#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
404	#define IPCTL_SOURCEROUTE 8 /* may perform source routes */
405	#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
406	#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
407	#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
408	#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
409	#define IPCTL_MAXID 13
410
411	#define IPCTL_NAMES { \
412	{ 0, 0 }, \
413	{ "forwarding", CTLTYPE_INT }, \
414	{ "redirect", CTLTYPE_INT }, \
415	{ "ttl", CTLTYPE_INT }, \
416	{ "mtu", CTLTYPE_INT }, \
417	{ "rtexpire", CTLTYPE_INT }, \
418	{ "rtminexpire", CTLTYPE_INT }, \
419	{ "rtmaxcache", CTLTYPE_INT }, \
420	{ "sourceroute", CTLTYPE_INT }, \
421	{ "directed-broadcast", CTLTYPE_INT }, \
422	{ "intr-queue-maxlen", CTLTYPE_INT }, \
423	{ "intr-queue-drops", CTLTYPE_INT }, \
424	{ "accept_sourceroute", CTLTYPE_INT }, \
425	}
426
427
428	#ifdef _KERNEL
429	struct ifnet; struct mbuf; /* forward declarations for Standard C */
430
431	int in_broadcast __P((struct in_addr, struct ifnet *));
432	int in_canforward __P((struct in_addr));
433	int in_cksum __P((struct mbuf *, int));
434	int in_localaddr __P((struct in_addr));
435	char inet_ntoa __P((struct in_addr)); / in libkern */
436
437	/* Firewall hooks */
438	struct ip;
439	typedef int ip_fw_chk_t __P((struct ip*, int, struct ifnet, int, struct mbuf**));
440	typedef int ip_fw_ctl_t __P((int, struct mbuf**));
441	extern ip_fw_chk_t *ip_fw_chk_ptr;
442	extern ip_fw_ctl_t *ip_fw_ctl_ptr;
443
444	/* IP NAT hooks */
445	typedef int ip_nat_t __P((struct ip, struct mbuf, struct ifnet*, int));
446	typedef int ip_nat_ctl_t __P((int, struct mbuf**));
447	extern ip_nat_t *ip_nat_ptr;
448	extern ip_nat_ctl_t *ip_nat_ctl_ptr;
449	#define IP_NAT_IN 0x00000001
450	#define IP_NAT_OUT 0x00000002
451
452	#endif /* _KERNEL */
453
454	#endif /* !_NETINET_IN_H_*/

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