in.h revision 72786
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 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)in.h	8.3 (Berkeley) 1/3/94
34 * $FreeBSD: head/sys/netinet/in.h 72786 2001-02-21 06:39:57Z rwatson $
35 */
36
37#ifndef _NETINET_IN_H_
38#define _NETINET_IN_H_
39
40/*
41 * Constants and structures defined by the internet system,
42 * Per RFC 790, September 1981, and numerous additions.
43 */
44
45/*
46 * Protocols (RFC 1700)
47 */
48#define	IPPROTO_IP		0		/* dummy for IP */
49#define	IPPROTO_HOPOPTS		0		/* IP6 hop-by-hop options */
50#define	IPPROTO_ICMP		1		/* control message protocol */
51#define	IPPROTO_IGMP		2		/* group mgmt protocol */
52#define	IPPROTO_GGP		3		/* gateway^2 (deprecated) */
53#define IPPROTO_IPV4		4 		/* IPv4 encapsulation */
54#define IPPROTO_IPIP		IPPROTO_IPV4	/* for compatibility */
55#define	IPPROTO_TCP		6		/* tcp */
56#define	IPPROTO_ST		7		/* Stream protocol II */
57#define	IPPROTO_EGP		8		/* exterior gateway protocol */
58#define	IPPROTO_PIGP		9		/* private interior gateway */
59#define	IPPROTO_RCCMON		10		/* BBN RCC Monitoring */
60#define	IPPROTO_NVPII		11		/* network voice protocol*/
61#define	IPPROTO_PUP		12		/* pup */
62#define	IPPROTO_ARGUS		13		/* Argus */
63#define	IPPROTO_EMCON		14		/* EMCON */
64#define	IPPROTO_XNET		15		/* Cross Net Debugger */
65#define	IPPROTO_CHAOS		16		/* Chaos*/
66#define	IPPROTO_UDP		17		/* user datagram protocol */
67#define	IPPROTO_MUX		18		/* Multiplexing */
68#define	IPPROTO_MEAS		19		/* DCN Measurement Subsystems */
69#define	IPPROTO_HMP		20		/* Host Monitoring */
70#define	IPPROTO_PRM		21		/* Packet Radio Measurement */
71#define	IPPROTO_IDP		22		/* xns idp */
72#define	IPPROTO_TRUNK1		23		/* Trunk-1 */
73#define	IPPROTO_TRUNK2		24		/* Trunk-2 */
74#define	IPPROTO_LEAF1		25		/* Leaf-1 */
75#define	IPPROTO_LEAF2		26		/* Leaf-2 */
76#define	IPPROTO_RDP		27		/* Reliable Data */
77#define	IPPROTO_IRTP		28		/* Reliable Transaction */
78#define	IPPROTO_TP		29 		/* tp-4 w/ class negotiation */
79#define	IPPROTO_BLT		30		/* Bulk Data Transfer */
80#define	IPPROTO_NSP		31		/* Network Services */
81#define	IPPROTO_INP		32		/* Merit Internodal */
82#define	IPPROTO_SEP		33		/* Sequential Exchange */
83#define	IPPROTO_3PC		34		/* Third Party Connect */
84#define	IPPROTO_IDPR		35		/* InterDomain Policy Routing */
85#define	IPPROTO_XTP		36		/* XTP */
86#define	IPPROTO_DDP		37		/* Datagram Delivery */
87#define	IPPROTO_CMTP		38		/* Control Message Transport */
88#define	IPPROTO_TPXX		39		/* TP++ Transport */
89#define	IPPROTO_IL		40		/* IL transport protocol */
90#define	IPPROTO_IPV6		41		/* IP6 header */
91#define	IPPROTO_SDRP		42		/* Source Demand Routing */
92#define	IPPROTO_ROUTING		43		/* IP6 routing header */
93#define	IPPROTO_FRAGMENT	44		/* IP6 fragmentation header */
94#define	IPPROTO_IDRP		45		/* InterDomain Routing*/
95#define	IPPROTO_RSVP		46 		/* resource reservation */
96#define	IPPROTO_GRE		47		/* General Routing Encap. */
97#define	IPPROTO_MHRP		48		/* Mobile Host Routing */
98#define	IPPROTO_BHA		49		/* BHA */
99#define	IPPROTO_ESP		50		/* IP6 Encap Sec. Payload */
100#define	IPPROTO_AH		51		/* IP6 Auth Header */
101#define	IPPROTO_INLSP		52		/* Integ. Net Layer Security */
102#define	IPPROTO_SWIPE		53		/* IP with encryption */
103#define	IPPROTO_NHRP		54		/* Next Hop Resolution */
104#define IPPROTO_MOBILE		55		/* IP Mobility */
105#define IPPROTO_TLSP		56		/* Transport Layer Security */
106#define IPPROTO_SKIP		57		/* SKIP */
107#define	IPPROTO_ICMPV6		58		/* ICMP6 */
108#define	IPPROTO_NONE		59		/* IP6 no next header */
109#define	IPPROTO_DSTOPTS		60		/* IP6 destination option */
110#define	IPPROTO_AHIP		61		/* any host internal protocol */
111#define	IPPROTO_CFTP		62		/* CFTP */
112#define	IPPROTO_HELLO		63		/* "hello" routing protocol */
113#define	IPPROTO_SATEXPAK	64		/* SATNET/Backroom EXPAK */
114#define	IPPROTO_KRYPTOLAN	65		/* Kryptolan */
115#define	IPPROTO_RVD		66		/* Remote Virtual Disk */
116#define	IPPROTO_IPPC		67		/* Pluribus Packet Core */
117#define	IPPROTO_ADFS		68		/* Any distributed FS */
118#define	IPPROTO_SATMON		69		/* Satnet Monitoring */
119#define	IPPROTO_VISA		70		/* VISA Protocol */
120#define	IPPROTO_IPCV		71		/* Packet Core Utility */
121#define	IPPROTO_CPNX		72		/* Comp. Prot. Net. Executive */
122#define	IPPROTO_CPHB		73		/* Comp. Prot. HeartBeat */
123#define	IPPROTO_WSN		74		/* Wang Span Network */
124#define	IPPROTO_PVP		75		/* Packet Video Protocol */
125#define	IPPROTO_BRSATMON	76		/* BackRoom SATNET Monitoring */
126#define	IPPROTO_ND		77		/* Sun net disk proto (temp.) */
127#define	IPPROTO_WBMON		78		/* WIDEBAND Monitoring */
128#define	IPPROTO_WBEXPAK		79		/* WIDEBAND EXPAK */
129#define	IPPROTO_EON		80		/* ISO cnlp */
130#define	IPPROTO_VMTP		81		/* VMTP */
131#define	IPPROTO_SVMTP		82		/* Secure VMTP */
132#define	IPPROTO_VINES		83		/* Banyon VINES */
133#define	IPPROTO_TTP		84		/* TTP */
134#define	IPPROTO_IGP		85		/* NSFNET-IGP */
135#define	IPPROTO_DGP		86		/* dissimilar gateway prot. */
136#define	IPPROTO_TCF		87		/* TCF */
137#define	IPPROTO_IGRP		88		/* Cisco/GXS IGRP */
138#define	IPPROTO_OSPFIGP		89		/* OSPFIGP */
139#define	IPPROTO_SRPC		90		/* Strite RPC protocol */
140#define	IPPROTO_LARP		91		/* Locus Address Resoloution */
141#define	IPPROTO_MTP		92		/* Multicast Transport */
142#define	IPPROTO_AX25		93		/* AX.25 Frames */
143#define	IPPROTO_IPEIP		94		/* IP encapsulated in IP */
144#define	IPPROTO_MICP		95		/* Mobile Int.ing control */
145#define	IPPROTO_SCCSP		96		/* Semaphore Comm. security */
146#define	IPPROTO_ETHERIP		97		/* Ethernet IP encapsulation */
147#define	IPPROTO_ENCAP		98		/* encapsulation header */
148#define	IPPROTO_APES		99		/* any private encr. scheme */
149#define	IPPROTO_GMTP		100		/* GMTP*/
150#define	IPPROTO_IPCOMP		108		/* payload compression (IPComp) */
151/* 101-254: Partly Unassigned */
152#define	IPPROTO_PIM		103		/* Protocol Independent Mcast */
153#define	IPPROTO_PGM		113		/* PGM */
154/* 255: Reserved */
155/* BSD Private, local use, namespace incursion */
156#define	IPPROTO_DIVERT		254		/* divert pseudo-protocol */
157#define	IPPROTO_RAW		255		/* raw IP packet */
158#define	IPPROTO_MAX		256
159
160/* last return value of *_input(), meaning "all job for this pkt is done".  */
161#define	IPPROTO_DONE		257
162
163/*
164 * Local port number conventions:
165 *
166 * When a user does a bind(2) or connect(2) with a port number of zero,
167 * a non-conflicting local port address is chosen.
168 * The default range is IPPORT_RESERVED through
169 * IPPORT_USERRESERVED, although that is settable by sysctl.
170 *
171 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
172 * default assignment range.
173 *
174 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
175 *
176 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
177 * into the "high" range.  These are reserved for client outbound connections
178 * which do not want to be filtered by any firewalls.
179 *
180 * The value IP_PORTRANGE_LOW changes the range to the "low" are
181 * that is (by convention) restricted to privileged processes.  This
182 * convention is based on "vouchsafe" principles only.  It is only secure
183 * if you trust the remote host to restrict these ports.
184 *
185 * The default range of ports and the high range can be changed by
186 * sysctl(3).  (net.inet.ip.port{hi,low}{first,last}_auto)
187 *
188 * Changing those values has bad security implications if you are
189 * using a a stateless firewall that is allowing packets outside of that
190 * range in order to allow transparent outgoing connections.
191 *
192 * Such a firewall configuration will generally depend on the use of these
193 * default values.  If you change them, you may find your Security
194 * Administrator looking for you with a heavy object.
195 *
196 * For a slightly more orthodox text view on this:
197 *
198 *            ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
199 *
200 *    port numbers are divided into three ranges:
201 *
202 *                0 -  1023 Well Known Ports
203 *             1024 - 49151 Registered Ports
204 *            49152 - 65535 Dynamic and/or Private Ports
205 *
206 */
207
208/*
209 * Ports < IPPORT_RESERVED are reserved for
210 * privileged processes (e.g. root).         (IP_PORTRANGE_LOW)
211 * Ports > IPPORT_USERRESERVED are reserved
212 * for servers, not necessarily privileged.  (IP_PORTRANGE_DEFAULT)
213 */
214#define	IPPORT_RESERVED		1024
215#define	IPPORT_USERRESERVED	5000
216
217/*
218 * Default local port range to use by setting IP_PORTRANGE_HIGH
219 */
220#define	IPPORT_HIFIRSTAUTO	49152
221#define	IPPORT_HILASTAUTO	65535
222
223/*
224 * Scanning for a free reserved port return a value below IPPORT_RESERVED,
225 * but higher than IPPORT_RESERVEDSTART.  Traditionally the start value was
226 * 512, but that conflicts with some well-known-services that firewalls may
227 * have a fit if we use.
228 */
229#define IPPORT_RESERVEDSTART	600
230
231/*
232 * Internet address (a structure for historical reasons)
233 */
234struct in_addr {
235	u_int32_t s_addr;
236};
237
238/*
239 * Definitions of bits in internet address integers.
240 * On subnets, the decomposition of addresses to host and net parts
241 * is done according to subnet mask, not the masks here.
242 */
243#define	IN_CLASSA(i)		(((u_int32_t)(i) & 0x80000000) == 0)
244#define	IN_CLASSA_NET		0xff000000
245#define	IN_CLASSA_NSHIFT	24
246#define	IN_CLASSA_HOST		0x00ffffff
247#define	IN_CLASSA_MAX		128
248
249#define	IN_CLASSB(i)		(((u_int32_t)(i) & 0xc0000000) == 0x80000000)
250#define	IN_CLASSB_NET		0xffff0000
251#define	IN_CLASSB_NSHIFT	16
252#define	IN_CLASSB_HOST		0x0000ffff
253#define	IN_CLASSB_MAX		65536
254
255#define	IN_CLASSC(i)		(((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
256#define	IN_CLASSC_NET		0xffffff00
257#define	IN_CLASSC_NSHIFT	8
258#define	IN_CLASSC_HOST		0x000000ff
259
260#define	IN_CLASSD(i)		(((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
261#define	IN_CLASSD_NET		0xf0000000	/* These ones aren't really */
262#define	IN_CLASSD_NSHIFT	28		/* net and host fields, but */
263#define	IN_CLASSD_HOST		0x0fffffff	/* routing needn't know.    */
264#define	IN_MULTICAST(i)		IN_CLASSD(i)
265
266#define	IN_EXPERIMENTAL(i)	(((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
267#define	IN_BADCLASS(i)		(((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
268
269#define	INADDR_ANY		(u_int32_t)0x00000000
270#define	INADDR_LOOPBACK		(u_int32_t)0x7f000001
271#define	INADDR_BROADCAST	(u_int32_t)0xffffffff	/* must be masked */
272#ifndef _KERNEL
273#define	INADDR_NONE		0xffffffff		/* -1 return */
274#endif
275
276#define	INADDR_UNSPEC_GROUP	(u_int32_t)0xe0000000	/* 224.0.0.0 */
277#define	INADDR_ALLHOSTS_GROUP	(u_int32_t)0xe0000001	/* 224.0.0.1 */
278#define	INADDR_ALLRTRS_GROUP	(u_int32_t)0xe0000002	/* 224.0.0.2 */
279#define	INADDR_MAX_LOCAL_GROUP	(u_int32_t)0xe00000ff	/* 224.0.0.255 */
280
281#define	IN_LOOPBACKNET		127			/* official! */
282
283/*
284 * Socket address, internet style.
285 */
286struct sockaddr_in {
287	u_char	sin_len;
288	u_char	sin_family;
289	u_short	sin_port;
290	struct	in_addr sin_addr;
291	char	sin_zero[8];
292};
293
294#define	INET_ADDRSTRLEN                 16
295
296/*
297 * Structure used to describe IP options.
298 * Used to store options internally, to pass them to a process,
299 * or to restore options retrieved earlier.
300 * The ip_dst is used for the first-hop gateway when using a source route
301 * (this gets put into the header proper).
302 */
303struct ip_opts {
304	struct	in_addr ip_dst;		/* first hop, 0 w/o src rt */
305	char	ip_opts[40];		/* actually variable in size */
306};
307
308/*
309 * Options for use with [gs]etsockopt at the IP level.
310 * First word of comment is data type; bool is stored in int.
311 */
312#define	IP_OPTIONS		1    /* buf/ip_opts; set/get IP options */
313#define	IP_HDRINCL		2    /* int; header is included with data */
314#define	IP_TOS			3    /* int; IP type of service and preced. */
315#define	IP_TTL			4    /* int; IP time to live */
316#define	IP_RECVOPTS		5    /* bool; receive all IP opts w/dgram */
317#define	IP_RECVRETOPTS		6    /* bool; receive IP opts for response */
318#define	IP_RECVDSTADDR		7    /* bool; receive IP dst addr w/dgram */
319#define	IP_RETOPTS		8    /* ip_opts; set/get IP options */
320#define	IP_MULTICAST_IF		9    /* u_char; set/get IP multicast i/f  */
321#define	IP_MULTICAST_TTL	10   /* u_char; set/get IP multicast ttl */
322#define	IP_MULTICAST_LOOP	11   /* u_char; set/get IP multicast loopback */
323#define	IP_ADD_MEMBERSHIP	12   /* ip_mreq; add an IP group membership */
324#define	IP_DROP_MEMBERSHIP	13   /* ip_mreq; drop an IP group membership */
325#define IP_MULTICAST_VIF	14   /* set/get IP mcast virt. iface */
326#define IP_RSVP_ON		15   /* enable RSVP in kernel */
327#define IP_RSVP_OFF		16   /* disable RSVP in kernel */
328#define IP_RSVP_VIF_ON		17   /* set RSVP per-vif socket */
329#define IP_RSVP_VIF_OFF		18   /* unset RSVP per-vif socket */
330#define IP_PORTRANGE		19   /* int; range to choose for unspec port */
331#define	IP_RECVIF		20   /* bool; receive reception if w/dgram */
332/* for IPSEC */
333#define	IP_IPSEC_POLICY		21   /* int; set/get security policy */
334#define	IP_FAITH		22   /* bool; accept FAITH'ed connections */
335
336#define	IP_FW_ADD     		50   /* add a firewall rule to chain */
337#define	IP_FW_DEL    		51   /* delete a firewall rule from chain */
338#define	IP_FW_FLUSH   		52   /* flush firewall rule chain */
339#define	IP_FW_ZERO    		53   /* clear single/all firewall counter(s) */
340#define	IP_FW_GET     		54   /* get entire firewall rule chain */
341#define	IP_FW_RESETLOG		55   /* reset logging counters */
342
343#define	IP_DUMMYNET_CONFIGURE	60   /* add/configure a dummynet pipe */
344#define	IP_DUMMYNET_DEL		61   /* delete a dummynet pipe from chain */
345#define	IP_DUMMYNET_FLUSH	62   /* flush dummynet */
346#define	IP_DUMMYNET_GET		64   /* get entire dummynet pipes */
347
348/*
349 * Defaults and limits for options
350 */
351#define	IP_DEFAULT_MULTICAST_TTL  1	/* normally limit m'casts to 1 hop  */
352#define	IP_DEFAULT_MULTICAST_LOOP 1	/* normally hear sends if a member  */
353#define	IP_MAX_MEMBERSHIPS	20	/* per socket */
354
355/*
356 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
357 */
358struct ip_mreq {
359	struct	in_addr imr_multiaddr;	/* IP multicast address of group */
360	struct	in_addr imr_interface;	/* local IP address of interface */
361};
362
363/*
364 * Argument for IP_PORTRANGE:
365 * - which range to search when port is unspecified at bind() or connect()
366 */
367#define	IP_PORTRANGE_DEFAULT	0	/* default range */
368#define	IP_PORTRANGE_HIGH	1	/* "high" - request firewall bypass */
369#define	IP_PORTRANGE_LOW	2	/* "low" - vouchsafe security */
370
371/*
372 * Definitions for inet sysctl operations.
373 *
374 * Third level is protocol number.
375 * Fourth level is desired variable within that protocol.
376 */
377#define	IPPROTO_MAXID	(IPPROTO_AH + 1)	/* don't list to IPPROTO_MAX */
378
379#define	CTL_IPPROTO_NAMES { \
380	{ "ip", CTLTYPE_NODE }, \
381	{ "icmp", CTLTYPE_NODE }, \
382	{ "igmp", CTLTYPE_NODE }, \
383	{ "ggp", CTLTYPE_NODE }, \
384	{ 0, 0 }, \
385	{ 0, 0 }, \
386	{ "tcp", CTLTYPE_NODE }, \
387	{ 0, 0 }, \
388	{ "egp", CTLTYPE_NODE }, \
389	{ 0, 0 }, \
390	{ 0, 0 }, \
391	{ 0, 0 }, \
392	{ "pup", CTLTYPE_NODE }, \
393	{ 0, 0 }, \
394	{ 0, 0 }, \
395	{ 0, 0 }, \
396	{ 0, 0 }, \
397	{ "udp", CTLTYPE_NODE }, \
398	{ 0, 0 }, \
399	{ 0, 0 }, \
400	{ 0, 0 }, \
401	{ 0, 0 }, \
402	{ "idp", CTLTYPE_NODE }, \
403	{ 0, 0 }, \
404	{ 0, 0 }, \
405	{ 0, 0 }, \
406	{ 0, 0 }, \
407	{ 0, 0 }, \
408	{ 0, 0 }, \
409	{ 0, 0 }, \
410	{ 0, 0 }, \
411	{ 0, 0 }, \
412	{ 0, 0 }, \
413	{ 0, 0 }, \
414	{ 0, 0 }, \
415	{ 0, 0 }, \
416	{ 0, 0 }, \
417	{ 0, 0 }, \
418	{ 0, 0 }, \
419	{ 0, 0 }, \
420	{ 0, 0 }, \
421	{ 0, 0 }, \
422	{ 0, 0 }, \
423	{ 0, 0 }, \
424	{ 0, 0 }, \
425	{ 0, 0 }, \
426	{ 0, 0 }, \
427	{ 0, 0 }, \
428	{ 0, 0 }, \
429	{ 0, 0 }, \
430	{ 0, 0 }, \
431	{ "ipsec", CTLTYPE_NODE }, \
432}
433
434/*
435 * Names for IP sysctl objects
436 */
437#define	IPCTL_FORWARDING	1	/* act as router */
438#define	IPCTL_SENDREDIRECTS	2	/* may send redirects when forwarding */
439#define	IPCTL_DEFTTL		3	/* default TTL */
440#ifdef notyet
441#define	IPCTL_DEFMTU		4	/* default MTU */
442#endif
443#define IPCTL_RTEXPIRE		5	/* cloned route expiration time */
444#define IPCTL_RTMINEXPIRE	6	/* min value for expiration time */
445#define IPCTL_RTMAXCACHE	7	/* trigger level for dynamic expire */
446#define	IPCTL_SOURCEROUTE	8	/* may perform source routes */
447#define	IPCTL_DIRECTEDBROADCAST	9	/* may re-broadcast received packets */
448#define IPCTL_INTRQMAXLEN	10	/* max length of netisr queue */
449#define	IPCTL_INTRQDROPS	11	/* number of netisr q drops */
450#define	IPCTL_STATS		12	/* ipstat structure */
451#define	IPCTL_ACCEPTSOURCEROUTE	13	/* may accept source routed packets */
452#define	IPCTL_FASTFORWARDING	14	/* use fast IP forwarding code */
453#define	IPCTL_KEEPFAITH		15	/* FAITH IPv4->IPv6 translater ctl */
454#define	IPCTL_GIF_TTL		16	/* default TTL for gif encap packet */
455#define	IPCTL_MAXID		17
456
457#define	IPCTL_NAMES { \
458	{ 0, 0 }, \
459	{ "forwarding", CTLTYPE_INT }, \
460	{ "redirect", CTLTYPE_INT }, \
461	{ "ttl", CTLTYPE_INT }, \
462	{ "mtu", CTLTYPE_INT }, \
463	{ "rtexpire", CTLTYPE_INT }, \
464	{ "rtminexpire", CTLTYPE_INT }, \
465	{ "rtmaxcache", CTLTYPE_INT }, \
466	{ "sourceroute", CTLTYPE_INT }, \
467 	{ "directed-broadcast", CTLTYPE_INT }, \
468	{ "intr-queue-maxlen", CTLTYPE_INT }, \
469	{ "intr-queue-drops", CTLTYPE_INT }, \
470	{ "stats", CTLTYPE_STRUCT }, \
471	{ "accept_sourceroute", CTLTYPE_INT }, \
472	{ "fastforwarding", CTLTYPE_INT }, \
473}
474
475/* INET6 stuff */
476#define	__KAME_NETINET_IN_H_INCLUDED_
477#include <netinet6/in6.h>
478#undef __KAME_NETINET_IN_H_INCLUDED_
479
480#ifdef _KERNEL
481struct ifnet; struct mbuf;	/* forward declarations for Standard C */
482struct proc;
483
484int	 in_broadcast __P((struct in_addr, struct ifnet *));
485int	 in_canforward __P((struct in_addr));
486int	 in_localaddr __P((struct in_addr));
487char 	*inet_ntoa __P((struct in_addr)); /* in libkern */
488char	*inet_ntoa_r __P((struct in_addr ina, char *buf)); /* in libkern */
489
490#endif
491
492#endif
493