Bring CARP into the tree. CARP = Common Address Redundancy Protocol, which
[dragonfly.git] / sys / netinet / in.h
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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 * 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
f1f552f6 34 * $FreeBSD: src/sys/netinet/in.h,v 1.48.2.10 2003/08/24 08:24:38 hsu Exp $
0d16ba1d 35 * $DragonFly: src/sys/netinet/in.h,v 1.16 2007/08/16 20:03:57 dillon Exp $
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36 */
37
38#ifndef _NETINET_IN_H_
39#define _NETINET_IN_H_
40
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41#include <sys/types.h>
42
0cd066b4 43#ifndef _KERNEL
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44#include <machine/endian.h>
45#ifndef htonl
46#define htonl(x) __htonl(x)
47#endif
48#ifndef htons
49#define htons(x) __htons(x)
50#endif
51#ifndef ntohl
52#define ntohl(x) __ntohl(x)
53#endif
54#ifndef ntohs
55#define ntohs(x) __ntohs(x)
56#endif
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57#endif
58
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59/*
60 * Constants and structures defined by the internet system,
61 * Per RFC 790, September 1981, and numerous additions.
62 */
63
64/*
65 * Protocols (RFC 1700)
66 */
67#define IPPROTO_IP 0 /* dummy for IP */
68#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
69#define IPPROTO_ICMP 1 /* control message protocol */
70#define IPPROTO_IGMP 2 /* group mgmt protocol */
71#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
f23061d4 72#define IPPROTO_IPV4 4 /* IPv4 encapsulation */
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73#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
74#define IPPROTO_TCP 6 /* tcp */
75#define IPPROTO_ST 7 /* Stream protocol II */
76#define IPPROTO_EGP 8 /* exterior gateway protocol */
77#define IPPROTO_PIGP 9 /* private interior gateway */
78#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
79#define IPPROTO_NVPII 11 /* network voice protocol*/
80#define IPPROTO_PUP 12 /* pup */
81#define IPPROTO_ARGUS 13 /* Argus */
82#define IPPROTO_EMCON 14 /* EMCON */
83#define IPPROTO_XNET 15 /* Cross Net Debugger */
84#define IPPROTO_CHAOS 16 /* Chaos*/
85#define IPPROTO_UDP 17 /* user datagram protocol */
86#define IPPROTO_MUX 18 /* Multiplexing */
87#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
88#define IPPROTO_HMP 20 /* Host Monitoring */
89#define IPPROTO_PRM 21 /* Packet Radio Measurement */
90#define IPPROTO_IDP 22 /* xns idp */
91#define IPPROTO_TRUNK1 23 /* Trunk-1 */
92#define IPPROTO_TRUNK2 24 /* Trunk-2 */
93#define IPPROTO_LEAF1 25 /* Leaf-1 */
94#define IPPROTO_LEAF2 26 /* Leaf-2 */
95#define IPPROTO_RDP 27 /* Reliable Data */
96#define IPPROTO_IRTP 28 /* Reliable Transaction */
f23061d4 97#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
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98#define IPPROTO_BLT 30 /* Bulk Data Transfer */
99#define IPPROTO_NSP 31 /* Network Services */
100#define IPPROTO_INP 32 /* Merit Internodal */
101#define IPPROTO_SEP 33 /* Sequential Exchange */
102#define IPPROTO_3PC 34 /* Third Party Connect */
103#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
104#define IPPROTO_XTP 36 /* XTP */
105#define IPPROTO_DDP 37 /* Datagram Delivery */
106#define IPPROTO_CMTP 38 /* Control Message Transport */
107#define IPPROTO_TPXX 39 /* TP++ Transport */
108#define IPPROTO_IL 40 /* IL transport protocol */
109#define IPPROTO_IPV6 41 /* IP6 header */
110#define IPPROTO_SDRP 42 /* Source Demand Routing */
111#define IPPROTO_ROUTING 43 /* IP6 routing header */
112#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
113#define IPPROTO_IDRP 45 /* InterDomain Routing*/
f23061d4 114#define IPPROTO_RSVP 46 /* resource reservation */
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115#define IPPROTO_GRE 47 /* General Routing Encap. */
116#define IPPROTO_MHRP 48 /* Mobile Host Routing */
117#define IPPROTO_BHA 49 /* BHA */
118#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
119#define IPPROTO_AH 51 /* IP6 Auth Header */
120#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */
121#define IPPROTO_SWIPE 53 /* IP with encryption */
122#define IPPROTO_NHRP 54 /* Next Hop Resolution */
123#define IPPROTO_MOBILE 55 /* IP Mobility */
124#define IPPROTO_TLSP 56 /* Transport Layer Security */
125#define IPPROTO_SKIP 57 /* SKIP */
126#define IPPROTO_ICMPV6 58 /* ICMP6 */
127#define IPPROTO_NONE 59 /* IP6 no next header */
128#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
129#define IPPROTO_AHIP 61 /* any host internal protocol */
130#define IPPROTO_CFTP 62 /* CFTP */
131#define IPPROTO_HELLO 63 /* "hello" routing protocol */
132#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */
133#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */
134#define IPPROTO_RVD 66 /* Remote Virtual Disk */
135#define IPPROTO_IPPC 67 /* Pluribus Packet Core */
136#define IPPROTO_ADFS 68 /* Any distributed FS */
137#define IPPROTO_SATMON 69 /* Satnet Monitoring */
138#define IPPROTO_VISA 70 /* VISA Protocol */
139#define IPPROTO_IPCV 71 /* Packet Core Utility */
140#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */
141#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */
142#define IPPROTO_WSN 74 /* Wang Span Network */
143#define IPPROTO_PVP 75 /* Packet Video Protocol */
144#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */
145#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */
146#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */
147#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
148#define IPPROTO_EON 80 /* ISO cnlp */
149#define IPPROTO_VMTP 81 /* VMTP */
150#define IPPROTO_SVMTP 82 /* Secure VMTP */
151#define IPPROTO_VINES 83 /* Banyon VINES */
152#define IPPROTO_TTP 84 /* TTP */
153#define IPPROTO_IGP 85 /* NSFNET-IGP */
154#define IPPROTO_DGP 86 /* dissimilar gateway prot. */
155#define IPPROTO_TCF 87 /* TCF */
156#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */
157#define IPPROTO_OSPFIGP 89 /* OSPFIGP */
158#define IPPROTO_SRPC 90 /* Strite RPC protocol */
159#define IPPROTO_LARP 91 /* Locus Address Resoloution */
160#define IPPROTO_MTP 92 /* Multicast Transport */
161#define IPPROTO_AX25 93 /* AX.25 Frames */
162#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */
163#define IPPROTO_MICP 95 /* Mobile Int.ing control */
164#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */
165#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */
166#define IPPROTO_ENCAP 98 /* encapsulation header */
167#define IPPROTO_APES 99 /* any private encr. scheme */
168#define IPPROTO_GMTP 100 /* GMTP*/
169#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */
170/* 101-254: Partly Unassigned */
171#define IPPROTO_PIM 103 /* Protocol Independent Mcast */
0d16ba1d 172#define IPPROTO_CARP 112 /* CARP */
984263bc 173#define IPPROTO_PGM 113 /* PGM */
78812139 174#define IPPROTO_SCTP 132 /* SCTP */
f23061d4 175#define IPPROTO_PFSYNC 240 /* PFSYNC */
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176/* 255: Reserved */
177/* BSD Private, local use, namespace incursion */
178#define IPPROTO_DIVERT 254 /* divert pseudo-protocol */
179#define IPPROTO_RAW 255 /* raw IP packet */
180#define IPPROTO_MAX 256
181
182/* last return value of *_input(), meaning "all job for this pkt is done". */
183#define IPPROTO_DONE 257
184
185/*
186 * Local port number conventions:
187 *
188 * When a user does a bind(2) or connect(2) with a port number of zero,
189 * a non-conflicting local port address is chosen.
190 * The default range is IPPORT_RESERVED through
191 * IPPORT_USERRESERVED, although that is settable by sysctl.
192 *
193 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
194 * default assignment range.
195 *
196 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
197 *
198 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
199 * into the "high" range. These are reserved for client outbound connections
200 * which do not want to be filtered by any firewalls.
201 *
202 * The value IP_PORTRANGE_LOW changes the range to the "low" are
203 * that is (by convention) restricted to privileged processes. This
204 * convention is based on "vouchsafe" principles only. It is only secure
205 * if you trust the remote host to restrict these ports.
206 *
207 * The default range of ports and the high range can be changed by
208 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
209 *
210 * Changing those values has bad security implications if you are
211 * using a a stateless firewall that is allowing packets outside of that
212 * range in order to allow transparent outgoing connections.
213 *
214 * Such a firewall configuration will generally depend on the use of these
215 * default values. If you change them, you may find your Security
216 * Administrator looking for you with a heavy object.
217 *
218 * For a slightly more orthodox text view on this:
f23061d4 219 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
984263bc 220 *
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221 * port numbers are divided into three ranges:
222 * 0 - 1023 Well Known Ports
223 * 1024 - 49151 Registered Ports
224 * 49152 - 65535 Dynamic and/or Private Ports
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225 */
226
227/*
228 * Ports < IPPORT_RESERVED are reserved for
f23061d4 229 * privileged processes (e.g. root). (IP_PORTRANGE_LOW)
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230 * Ports > IPPORT_USERRESERVED are reserved
231 * for servers, not necessarily privileged. (IP_PORTRANGE_DEFAULT)
232 */
233#define IPPORT_RESERVED 1024
234#define IPPORT_USERRESERVED 5000
235
236/*
237 * Default local port range to use by setting IP_PORTRANGE_HIGH
238 */
239#define IPPORT_HIFIRSTAUTO 49152
240#define IPPORT_HILASTAUTO 65535
241
242/*
243 * Scanning for a free reserved port return a value below IPPORT_RESERVED,
244 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
245 * 512, but that conflicts with some well-known-services that firewalls may
246 * have a fit if we use.
247 */
248#define IPPORT_RESERVEDSTART 600
249
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250#ifndef _STRUCT_IN_ADDR_DECLARED
251#define _STRUCT_IN_ADDR_DECLARED
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252/*
253 * Internet address (a structure for historical reasons)
254 */
255struct in_addr {
256 in_addr_t s_addr;
257};
b8c427c9 258#endif
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259
260/*
261 * Definitions of bits in internet address integers.
262 * On subnets, the decomposition of addresses to host and net parts
263 * is done according to subnet mask, not the masks here.
264 */
265#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0)
266#define IN_CLASSA_NET 0xff000000
267#define IN_CLASSA_NSHIFT 24
268#define IN_CLASSA_HOST 0x00ffffff
269#define IN_CLASSA_MAX 128
270
271#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000)
272#define IN_CLASSB_NET 0xffff0000
273#define IN_CLASSB_NSHIFT 16
274#define IN_CLASSB_HOST 0x0000ffff
275#define IN_CLASSB_MAX 65536
276
277#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
278#define IN_CLASSC_NET 0xffffff00
279#define IN_CLASSC_NSHIFT 8
280#define IN_CLASSC_HOST 0x000000ff
281
282#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
283#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
284#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
285#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
286#define IN_MULTICAST(i) IN_CLASSD(i)
287
288#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
289#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
290
291#define INADDR_ANY (u_int32_t)0x00000000
292#define INADDR_LOOPBACK (u_int32_t)0x7f000001
293#define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */
294#ifndef _KERNEL
295#define INADDR_NONE 0xffffffff /* -1 return */
296#endif
297
298#define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */
299#define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */
300#define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */
0d16ba1d 301#define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */
02742ec6 302#define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */
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303#define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */
304
305#define IN_LOOPBACKNET 127 /* official! */
306
307/*
308 * Socket address, internet style.
309 */
310struct sockaddr_in {
311 u_char sin_len;
312 u_char sin_family;
313 u_short sin_port;
314 struct in_addr sin_addr;
315 char sin_zero[8];
316};
317
f23061d4 318#define INET_ADDRSTRLEN 16
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319
320/*
321 * Options for use with [gs]etsockopt at the IP level.
322 * First word of comment is data type; bool is stored in int.
323 */
324#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
325#define IP_HDRINCL 2 /* int; header is included with data */
326#define IP_TOS 3 /* int; IP type of service and preced. */
327#define IP_TTL 4 /* int; IP time to live */
328#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
329#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
330#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
331#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
332#define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */
333#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
334#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
335#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
336#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
337#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
338#define IP_RSVP_ON 15 /* enable RSVP in kernel */
339#define IP_RSVP_OFF 16 /* disable RSVP in kernel */
340#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
341#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
342#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
343#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
344/* for IPSEC */
345#define IP_IPSEC_POLICY 21 /* int; set/get security policy */
346#define IP_FAITH 22 /* bool; accept FAITH'ed connections */
347
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348#define IP_FW_ADD 50 /* add a firewall rule to chain */
349#define IP_FW_DEL 51 /* delete a firewall rule from chain */
350#define IP_FW_FLUSH 52 /* flush firewall rule chain */
351#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
352#define IP_FW_GET 54 /* get entire firewall rule chain */
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353#define IP_FW_RESETLOG 55 /* reset logging counters */
354
355#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */
356#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */
357#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */
358#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */
359
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360#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */
361#define IP_MINTTL 66 /* minimum TTL for packet or drop */
362
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363/*
364 * Defaults and limits for options
365 */
366#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
367#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
368#define IP_MAX_MEMBERSHIPS 20 /* per socket */
369
370/*
371 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
372 */
373struct ip_mreq {
374 struct in_addr imr_multiaddr; /* IP multicast address of group */
375 struct in_addr imr_interface; /* local IP address of interface */
376};
377
378/*
379 * Argument for IP_PORTRANGE:
380 * - which range to search when port is unspecified at bind() or connect()
381 */
382#define IP_PORTRANGE_DEFAULT 0 /* default range */
383#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
384#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
385
386/*
387 * Definitions for inet sysctl operations.
388 *
389 * Third level is protocol number.
390 * Fourth level is desired variable within that protocol.
391 */
392#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */
393
394#define CTL_IPPROTO_NAMES { \
395 { "ip", CTLTYPE_NODE }, \
396 { "icmp", CTLTYPE_NODE }, \
397 { "igmp", CTLTYPE_NODE }, \
398 { "ggp", CTLTYPE_NODE }, \
399 { 0, 0 }, \
400 { 0, 0 }, \
401 { "tcp", CTLTYPE_NODE }, \
402 { 0, 0 }, \
403 { "egp", CTLTYPE_NODE }, \
404 { 0, 0 }, \
405 { 0, 0 }, \
406 { 0, 0 }, \
407 { "pup", CTLTYPE_NODE }, \
408 { 0, 0 }, \
409 { 0, 0 }, \
410 { 0, 0 }, \
411 { 0, 0 }, \
412 { "udp", CTLTYPE_NODE }, \
413 { 0, 0 }, \
414 { 0, 0 }, \
415 { 0, 0 }, \
416 { 0, 0 }, \
417 { "idp", CTLTYPE_NODE }, \
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 { 0, 0 }, \
432 { 0, 0 }, \
433 { 0, 0 }, \
434 { 0, 0 }, \
435 { 0, 0 }, \
436 { 0, 0 }, \
437 { 0, 0 }, \
438 { 0, 0 }, \
439 { 0, 0 }, \
440 { 0, 0 }, \
441 { 0, 0 }, \
442 { 0, 0 }, \
443 { 0, 0 }, \
444 { 0, 0 }, \
445 { 0, 0 }, \
446 { "ipsec", CTLTYPE_NODE }, \
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447 { 0, 0 }, \
448 { 0, 0 }, \
449 { 0, 0 }, \
450 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
451 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
452 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
453 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
454 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
455 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
456 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
457 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
458 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
459 { 0, 0 }, \
460 { 0, 0 }, \
461 { 0, 0 }, \
462 { "pim", CTLTYPE_NODE }, \
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463}
464
465/*
466 * Names for IP sysctl objects
467 */
468#define IPCTL_FORWARDING 1 /* act as router */
469#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
470#define IPCTL_DEFTTL 3 /* default TTL */
471#ifdef notyet
472#define IPCTL_DEFMTU 4 /* default MTU */
473#endif
474#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
475#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
476#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
477#define IPCTL_SOURCEROUTE 8 /* may perform source routes */
478#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
479#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
480#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
481#define IPCTL_STATS 12 /* ipstat structure */
482#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
483#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
484#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
485#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
486#define IPCTL_MAXID 17
487
488#define IPCTL_NAMES { \
489 { 0, 0 }, \
490 { "forwarding", CTLTYPE_INT }, \
491 { "redirect", CTLTYPE_INT }, \
492 { "ttl", CTLTYPE_INT }, \
493 { "mtu", CTLTYPE_INT }, \
494 { "rtexpire", CTLTYPE_INT }, \
495 { "rtminexpire", CTLTYPE_INT }, \
496 { "rtmaxcache", CTLTYPE_INT }, \
497 { "sourceroute", CTLTYPE_INT }, \
f23061d4 498 { "directed-broadcast", CTLTYPE_INT }, \
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499 { "intr-queue-maxlen", CTLTYPE_INT }, \
500 { "intr-queue-drops", CTLTYPE_INT }, \
501 { "stats", CTLTYPE_STRUCT }, \
502 { "accept_sourceroute", CTLTYPE_INT }, \
503 { "fastforwarding", CTLTYPE_INT }, \
504}
505
506#ifdef _KERNEL
507struct ifnet; struct mbuf; /* forward declarations for Standard C */
508#endif
509
510/* INET6 stuff */
511#define __KAME_NETINET_IN_H_INCLUDED_
512#include <netinet6/in6.h>
513#undef __KAME_NETINET_IN_H_INCLUDED_
514
515#ifdef _KERNEL
516
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517struct thread;
518
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519int in_broadcast (struct in_addr, struct ifnet *);
520int in_canforward (struct in_addr);
42a7fc75 521int in_localaddr (struct in_addr);
f23061d4 522char *inet_ntoa (struct in_addr); /* in libkern */
984263bc 523
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524int prison_replace_wildcards (struct thread *td, struct sockaddr *ip);
525int prison_remote_ip (struct thread *td, struct sockaddr *ip);
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526
527#define in_hosteq(s, t) ((s).s_addr == (t).s_addr)
528#define in_nullhost(x) ((x).s_addr == INADDR_ANY)
529
530#define satosin(sa) ((struct sockaddr_in *)(sa))
531#define sintosa(sin) ((struct sockaddr *)(sin))
532#define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
533
534#endif
535
536#endif