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
|
124
125#if __POSIX_VISIBLE >= 200112
126#define IPPROTO_IPV6 41 /* IP6 header */
127#define IPPROTO_RAW 255 /* raw IP packet */
128#define INET_ADDRSTRLEN 16
129#endif
130
131#if __BSD_VISIBLE
132/*
133 * Constants and structures defined by the internet system,
134 * Per RFC 790, September 1981, and numerous additions.
135 */
136
137/*
138 * Protocols (RFC 1700)
139 */
140#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
141#define IPPROTO_IGMP 2 /* group mgmt protocol */
142#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
143#define IPPROTO_IPV4 4 /* IPv4 encapsulation */
144#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
145#define IPPROTO_ST 7 /* Stream protocol II */
146#define IPPROTO_EGP 8 /* exterior gateway protocol */
147#define IPPROTO_PIGP 9 /* private interior gateway */
148#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
149#define IPPROTO_NVPII 11 /* network voice protocol*/
150#define IPPROTO_PUP 12 /* pup */
151#define IPPROTO_ARGUS 13 /* Argus */
152#define IPPROTO_EMCON 14 /* EMCON */
153#define IPPROTO_XNET 15 /* Cross Net Debugger */
154#define IPPROTO_CHAOS 16 /* Chaos*/
155#define IPPROTO_MUX 18 /* Multiplexing */
156#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
157#define IPPROTO_HMP 20 /* Host Monitoring */
158#define IPPROTO_PRM 21 /* Packet Radio Measurement */
159#define IPPROTO_IDP 22 /* xns idp */
160#define IPPROTO_TRUNK1 23 /* Trunk-1 */
161#define IPPROTO_TRUNK2 24 /* Trunk-2 */
162#define IPPROTO_LEAF1 25 /* Leaf-1 */
163#define IPPROTO_LEAF2 26 /* Leaf-2 */
164#define IPPROTO_RDP 27 /* Reliable Data */
165#define IPPROTO_IRTP 28 /* Reliable Transaction */
166#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
167#define IPPROTO_BLT 30 /* Bulk Data Transfer */
168#define IPPROTO_NSP 31 /* Network Services */
169#define IPPROTO_INP 32 /* Merit Internodal */
170#define IPPROTO_SEP 33 /* Sequential Exchange */
171#define IPPROTO_3PC 34 /* Third Party Connect */
172#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
173#define IPPROTO_XTP 36 /* XTP */
174#define IPPROTO_DDP 37 /* Datagram Delivery */
175#define IPPROTO_CMTP 38 /* Control Message Transport */
176#define IPPROTO_TPXX 39 /* TP++ Transport */
177#define IPPROTO_IL 40 /* IL transport protocol */
178#define IPPROTO_SDRP 42 /* Source Demand Routing */
179#define IPPROTO_ROUTING 43 /* IP6 routing header */
180#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
181#define IPPROTO_IDRP 45 /* InterDomain Routing*/
182#define IPPROTO_RSVP 46 /* resource reservation */
183#define IPPROTO_GRE 47 /* General Routing Encap. */
184#define IPPROTO_MHRP 48 /* Mobile Host Routing */
185#define IPPROTO_BHA 49 /* BHA */
186#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
187#define IPPROTO_AH 51 /* IP6 Auth Header */
188#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */
189#define IPPROTO_SWIPE 53 /* IP with encryption */
190#define IPPROTO_NHRP 54 /* Next Hop Resolution */
191#define IPPROTO_MOBILE 55 /* IP Mobility */
192#define IPPROTO_TLSP 56 /* Transport Layer Security */
193#define IPPROTO_SKIP 57 /* SKIP */
194#define IPPROTO_ICMPV6 58 /* ICMP6 */
195#define IPPROTO_NONE 59 /* IP6 no next header */
196#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
197#define IPPROTO_AHIP 61 /* any host internal protocol */
198#define IPPROTO_CFTP 62 /* CFTP */
199#define IPPROTO_HELLO 63 /* "hello" routing protocol */
200#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */
201#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */
202#define IPPROTO_RVD 66 /* Remote Virtual Disk */
203#define IPPROTO_IPPC 67 /* Pluribus Packet Core */
204#define IPPROTO_ADFS 68 /* Any distributed FS */
205#define IPPROTO_SATMON 69 /* Satnet Monitoring */
206#define IPPROTO_VISA 70 /* VISA Protocol */
207#define IPPROTO_IPCV 71 /* Packet Core Utility */
208#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */
209#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */
210#define IPPROTO_WSN 74 /* Wang Span Network */
211#define IPPROTO_PVP 75 /* Packet Video Protocol */
212#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */
213#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */
214#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */
215#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
216#define IPPROTO_EON 80 /* ISO cnlp */
217#define IPPROTO_VMTP 81 /* VMTP */
218#define IPPROTO_SVMTP 82 /* Secure VMTP */
219#define IPPROTO_VINES 83 /* Banyon VINES */
220#define IPPROTO_TTP 84 /* TTP */
221#define IPPROTO_IGP 85 /* NSFNET-IGP */
222#define IPPROTO_DGP 86 /* dissimilar gateway prot. */
223#define IPPROTO_TCF 87 /* TCF */
224#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */
225#define IPPROTO_OSPFIGP 89 /* OSPFIGP */
226#define IPPROTO_SRPC 90 /* Strite RPC protocol */
227#define IPPROTO_LARP 91 /* Locus Address Resoloution */
228#define IPPROTO_MTP 92 /* Multicast Transport */
229#define IPPROTO_AX25 93 /* AX.25 Frames */
230#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */
231#define IPPROTO_MICP 95 /* Mobile Int.ing control */
232#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */
233#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */
234#define IPPROTO_ENCAP 98 /* encapsulation header */
235#define IPPROTO_APES 99 /* any private encr. scheme */
236#define IPPROTO_GMTP 100 /* GMTP*/
237#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */
238#define IPPROTO_SCTP 132 /* SCTP */
239#define IPPROTO_MH 135 /* IPv6 Mobility Header */
240#define IPPROTO_UDPLITE 136 /* UDP-Lite */
241#define IPPROTO_HIP 139 /* IP6 Host Identity Protocol */
242#define IPPROTO_SHIM6 140 /* IP6 Shim6 Protocol */
243/* 101-254: Partly Unassigned */
244#define IPPROTO_PIM 103 /* Protocol Independent Mcast */
245#define IPPROTO_CARP 112 /* CARP */
246#define IPPROTO_PGM 113 /* PGM */
247#define IPPROTO_MPLS 137 /* MPLS-in-IP */
248#define IPPROTO_PFSYNC 240 /* PFSYNC */
249#define IPPROTO_RESERVED_253 253 /* Reserved */
250#define IPPROTO_RESERVED_254 254 /* Reserved */
251/* 255: Reserved */
252/* BSD Private, local use, namespace incursion, no longer used */
253#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */
254#define IPPROTO_MAX 256
255
256/* last return value of *_input(), meaning "all job for this pkt is done". */
257#define IPPROTO_DONE 257
258
259/* Only used internally, so can be outside the range of valid IP protocols. */
260#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */
261#define IPPROTO_SEND 259 /* SeND pseudo-protocol */
262
263/*
264 * Defined to avoid confusion. The master value is defined by
265 * PROTO_SPACER in sys/protosw.h.
266 */
267#define IPPROTO_SPACER 32767 /* spacer for loadable protos */
268
269/*
270 * Local port number conventions:
271 *
272 * When a user does a bind(2) or connect(2) with a port number of zero,
273 * a non-conflicting local port address is chosen.
274 * The default range is IPPORT_HIFIRSTAUTO through
275 * IPPORT_HILASTAUTO, although that is settable by sysctl.
276 *
277 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
278 * default assignment range.
279 *
280 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
281 *
282 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
283 * into the "high" range. These are reserved for client outbound connections
284 * which do not want to be filtered by any firewalls.
285 *
286 * The value IP_PORTRANGE_LOW changes the range to the "low" are
287 * that is (by convention) restricted to privileged processes. This
288 * convention is based on "vouchsafe" principles only. It is only secure
289 * if you trust the remote host to restrict these ports.
290 *
291 * The default range of ports and the high range can be changed by
292 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
293 *
294 * Changing those values has bad security implications if you are
295 * using a stateless firewall that is allowing packets outside of that
296 * range in order to allow transparent outgoing connections.
297 *
298 * Such a firewall configuration will generally depend on the use of these
299 * default values. If you change them, you may find your Security
300 * Administrator looking for you with a heavy object.
301 *
302 * For a slightly more orthodox text view on this:
303 *
304 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
305 *
306 * port numbers are divided into three ranges:
307 *
308 * 0 - 1023 Well Known Ports
309 * 1024 - 49151 Registered Ports
310 * 49152 - 65535 Dynamic and/or Private Ports
311 *
312 */
313
314/*
315 * Ports < IPPORT_RESERVED are reserved for
316 * privileged processes (e.g. root). (IP_PORTRANGE_LOW)
317 */
318#define IPPORT_RESERVED 1024
319
320/*
321 * Default local port range, used by IP_PORTRANGE_DEFAULT
322 */
323#define IPPORT_EPHEMERALFIRST 10000
324#define IPPORT_EPHEMERALLAST 65535
325
326/*
327 * Dynamic port range, used by IP_PORTRANGE_HIGH.
328 */
329#define IPPORT_HIFIRSTAUTO 49152
330#define IPPORT_HILASTAUTO 65535
331
332/*
333 * Scanning for a free reserved port return a value below IPPORT_RESERVED,
334 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
335 * 512, but that conflicts with some well-known-services that firewalls may
336 * have a fit if we use.
337 */
338#define IPPORT_RESERVEDSTART 600
339
340#define IPPORT_MAX 65535
341
342/*
343 * Definitions of bits in internet address integers.
344 * On subnets, the decomposition of addresses to host and net parts
345 * is done according to subnet mask, not the masks here.
346 */
347#define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0)
348#define IN_CLASSA_NET 0xff000000
349#define IN_CLASSA_NSHIFT 24
350#define IN_CLASSA_HOST 0x00ffffff
351#define IN_CLASSA_MAX 128
352
353#define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000)
354#define IN_CLASSB_NET 0xffff0000
355#define IN_CLASSB_NSHIFT 16
356#define IN_CLASSB_HOST 0x0000ffff
357#define IN_CLASSB_MAX 65536
358
359#define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000)
360#define IN_CLASSC_NET 0xffffff00
361#define IN_CLASSC_NSHIFT 8
362#define IN_CLASSC_HOST 0x000000ff
363
364#define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000)
365#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
366#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
367#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
368#define IN_MULTICAST(i) IN_CLASSD(i)
369
370#define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000)
371#define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000)
372
373#define IN_LINKLOCAL(i) (((in_addr_t)(i) & 0xffff0000) == 0xa9fe0000)
374#define IN_LOOPBACK(i) (((in_addr_t)(i) & 0xff000000) == 0x7f000000)
375#define IN_ZERONET(i) (((in_addr_t)(i) & 0xff000000) == 0)
376
377#define IN_PRIVATE(i) ((((in_addr_t)(i) & 0xff000000) == 0x0a000000) || \
378 (((in_addr_t)(i) & 0xfff00000) == 0xac100000) || \
379 (((in_addr_t)(i) & 0xffff0000) == 0xc0a80000))
380
381#define IN_LOCAL_GROUP(i) (((in_addr_t)(i) & 0xffffff00) == 0xe0000000)
382
383#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i))
384
385#define INADDR_LOOPBACK ((in_addr_t)0x7f000001)
386#ifndef _KERNEL
387#define INADDR_NONE ((in_addr_t)0xffffffff) /* -1 return */
388#endif
389
390#define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */
391#define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */
392#define INADDR_ALLRTRS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */
393#define INADDR_ALLRPTS_GROUP ((in_addr_t)0xe0000016) /* 224.0.0.22, IGMPv3 */
394#define INADDR_CARP_GROUP ((in_addr_t)0xe0000012) /* 224.0.0.18 */
395#define INADDR_PFSYNC_GROUP ((in_addr_t)0xe00000f0) /* 224.0.0.240 */
396#define INADDR_ALLMDNS_GROUP ((in_addr_t)0xe00000fb) /* 224.0.0.251 */
397#define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */
398
399#define IN_LOOPBACKNET 127 /* official! */
400
401#define IN_RFC3021_MASK ((in_addr_t)0xfffffffe)
402
403/*
404 * Options for use with [gs]etsockopt at the IP level.
405 * First word of comment is data type; bool is stored in int.
406 */
407#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
408#define IP_HDRINCL 2 /* int; header is included with data */
409#define IP_TOS 3 /* int; IP type of service and preced. */
410#define IP_TTL 4 /* int; IP time to live */
411#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
412#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
413#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
414#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */
415#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
416#define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn;
417 * set/get IP multicast i/f */
418#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
419#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
420#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
421#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
422#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
423#define IP_RSVP_ON 15 /* enable RSVP in kernel */
424#define IP_RSVP_OFF 16 /* disable RSVP in kernel */
425#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
426#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
427#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
428#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
429/* for IPSEC */
430#define IP_IPSEC_POLICY 21 /* int; set/get security policy */
431#define IP_FAITH 22 /* bool; accept FAITH'ed connections */
432
433#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */
434#define IP_BINDANY 24 /* bool: allow bind to any address */
435
436/*
437 * Options for controlling the firewall and dummynet.
438 * Historical options (from 40 to 64) will eventually be
439 * replaced by only two options, IP_FW3 and IP_DUMMYNET3.
440 */
441#define IP_FW_TABLE_ADD 40 /* add entry */
442#define IP_FW_TABLE_DEL 41 /* delete entry */
443#define IP_FW_TABLE_FLUSH 42 /* flush table */
444#define IP_FW_TABLE_GETSIZE 43 /* get table size */
445#define IP_FW_TABLE_LIST 44 /* list table contents */
446
447#define IP_FW3 48 /* generic ipfw v.3 sockopts */
448#define IP_DUMMYNET3 49 /* generic dummynet v.3 sockopts */
449
450#define IP_FW_ADD 50 /* add a firewall rule to chain */
451#define IP_FW_DEL 51 /* delete a firewall rule from chain */
452#define IP_FW_FLUSH 52 /* flush firewall rule chain */
453#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
454#define IP_FW_GET 54 /* get entire firewall rule chain */
455#define IP_FW_RESETLOG 55 /* reset logging counters */
456
457#define IP_FW_NAT_CFG 56 /* add/config a nat rule */
458#define IP_FW_NAT_DEL 57 /* delete a nat rule */
459#define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */
460#define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */
461
462#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */
463#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */
464#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */
465#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */
466
467#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */
468#define IP_MINTTL 66 /* minimum TTL for packet or drop */
469#define IP_DONTFRAG 67 /* don't fragment packet */
470#define IP_RECVTOS 68 /* bool; receive IP TOS w/dgram */
471#define IP_FLOWID 69 /* flow id for the given socket/inp */
472#define IP_FLOWTYPE 70 /* flow type (M_HASHTYPE) */
473#define IP_RSSCPUID 71 /* RSS flowid -> CPU id mapping */
474
475/* IPv4 Source Filter Multicast API [RFC3678] */
476#define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */
477#define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */
478#define IP_BLOCK_SOURCE 72 /* block a source */
479#define IP_UNBLOCK_SOURCE 73 /* unblock a source */
480
481/* The following option is private; do not use it from user applications. */
482#define IP_MSFILTER 74 /* set/get filter list */
483
484/* Protocol Independent Multicast API [RFC3678] */
485#define MCAST_JOIN_GROUP 80 /* join an any-source group */
486#define MCAST_LEAVE_GROUP 81 /* leave all sources for group */
487#define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */
488#define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */
489#define MCAST_BLOCK_SOURCE 84 /* block a source */
490#define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */
491
492/*
493 * Defaults and limits for options
494 */
495#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
496#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
497
498/*
499 * The imo_membership vector for each socket is now dynamically allocated at
500 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
501 * according to a power-of-two increment.
502 */
503#define IP_MIN_MEMBERSHIPS 31
504#define IP_MAX_MEMBERSHIPS 4095
505#define IP_MAX_SOURCE_FILTER 1024 /* XXX to be unused */
506
507/*
508 * Default resource limits for IPv4 multicast source filtering.
509 * These may be modified by sysctl.
510 */
511#define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */
512#define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
513#define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */
514
515/*
516 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
517 */
518struct ip_mreq {
519 struct in_addr imr_multiaddr; /* IP multicast address of group */
520 struct in_addr imr_interface; /* local IP address of interface */
521};
522
523/*
524 * Modified argument structure for IP_MULTICAST_IF, obtained from Linux.
525 * This is used to specify an interface index for multicast sends, as
526 * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available).
527 */
528struct ip_mreqn {
529 struct in_addr imr_multiaddr; /* IP multicast address of group */
530 struct in_addr imr_address; /* local IP address of interface */
531 int imr_ifindex; /* Interface index; cast to uint32_t */
532};
533
534/*
535 * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678]
536 */
537struct ip_mreq_source {
538 struct in_addr imr_multiaddr; /* IP multicast address of group */
539 struct in_addr imr_sourceaddr; /* IP address of source */
540 struct in_addr imr_interface; /* local IP address of interface */
541};
542
543/*
544 * Argument structures for Protocol-Independent Multicast Source
545 * Filter APIs. [RFC3678]
546 */
547struct group_req {
548 uint32_t gr_interface; /* interface index */
549 struct sockaddr_storage gr_group; /* group address */
550};
551
552struct group_source_req {
553 uint32_t gsr_interface; /* interface index */
554 struct sockaddr_storage gsr_group; /* group address */
555 struct sockaddr_storage gsr_source; /* source address */
556};
557
558#ifndef __MSFILTERREQ_DEFINED
559#define __MSFILTERREQ_DEFINED
560/*
561 * The following structure is private; do not use it from user applications.
562 * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between
563 * the RFC 3678 libc functions and the kernel.
564 */
565struct __msfilterreq {
566 uint32_t msfr_ifindex; /* interface index */
567 uint32_t msfr_fmode; /* filter mode for group */
568 uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */
569 struct sockaddr_storage msfr_group; /* group address */
570 struct sockaddr_storage *msfr_srcs; /* pointer to the first member
571 * of a contiguous array of
572 * sources to filter in full.
573 */
574};
575#endif
576
577struct sockaddr;
578
579/*
580 * Advanced (Full-state) APIs [RFC3678]
581 * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter().
582 * We use uint32_t here to be consistent.
583 */
584int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t,
585 uint32_t, struct in_addr *);
586int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *,
587 uint32_t *, struct in_addr *);
588int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
589 uint32_t, uint32_t, struct sockaddr_storage *);
590int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
591 uint32_t *, uint32_t *, struct sockaddr_storage *);
592
593/*
594 * Filter modes; also used to represent per-socket filter mode internally.
595 */
596#define MCAST_UNDEFINED 0 /* fmode: not yet defined */
597#define MCAST_INCLUDE 1 /* fmode: include these source(s) */
598#define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */
599
600/*
601 * Argument for IP_PORTRANGE:
602 * - which range to search when port is unspecified at bind() or connect()
603 */
604#define IP_PORTRANGE_DEFAULT 0 /* default range */
605#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
606#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
607
608/*
609 * Identifiers for IP sysctl nodes
610 */
611#define IPCTL_FORWARDING 1 /* act as router */
612#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
613#define IPCTL_DEFTTL 3 /* default TTL */
614#ifdef notyet
615#define IPCTL_DEFMTU 4 /* default MTU */
616#endif
617#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
618#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
619#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
620#define IPCTL_SOURCEROUTE 8 /* may perform source routes */
621#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
622#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
623#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
624#define IPCTL_STATS 12 /* ipstat structure */
625#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
626#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
627#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
628#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
629
630#endif /* __BSD_VISIBLE */
631
632#ifdef _KERNEL
633
634struct ifnet; struct mbuf; /* forward declarations for Standard C */
635
636int in_broadcast(struct in_addr, struct ifnet *);
637int in_canforward(struct in_addr);
638int in_localaddr(struct in_addr);
639int in_localip(struct in_addr);
640int inet_aton(const char *, struct in_addr *); /* in libkern */
641char *inet_ntoa(struct in_addr); /* in libkern */
642char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
643char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */
644int inet_pton(int af, const char *, void *); /* in libkern */
645void in_ifdetach(struct ifnet *);
646
647#define in_hosteq(s, t) ((s).s_addr == (t).s_addr)
648#define in_nullhost(x) ((x).s_addr == INADDR_ANY)
649#define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP))
650
651#define satosin(sa) ((struct sockaddr_in *)(sa))
652#define sintosa(sin) ((struct sockaddr *)(sin))
653#define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
654#endif /* _KERNEL */
655
656/* INET6 stuff */
657#if __POSIX_VISIBLE >= 200112
658#define __KAME_NETINET_IN_H_INCLUDED_
659#include <netinet6/in6.h>
660#undef __KAME_NETINET_IN_H_INCLUDED_
661#endif
662
663#endif /* !_NETINET_IN_H_*/
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