source: rtems/cpukit/libnetworking/netinet/in.h @ 657e6c93

Last change on this file since 657e6c93 was 657e6c93, checked in by Christian Mauderer <Christian.Mauderer@…>, on Jun 24, 2016 at 5:57:17 AM

libnetworking: Import current <netinet/in.h>

Import the <netinet/in.h> from current FreeBSD. This allows to build
some current software (e.g. libressl).

Add legacy support like

  • prototype for in_cksum(),
  • IPPORT_USERRESERVED,
  • deprecated IPCTL_RT* defines,
  • ip_fw_chk_t and ip_fw_ctl_t,
  • ip_nat_... (IP NAT hooks), and
  • IP_NAT option for get/setsockopt()

to new <rtems/rtems_netinet_in.h>.

  • Property mode set to 100644
File size: 25.6 KB
Line 
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: head/sys/netinet/in.h 281649 2015-04-17 11:57:06Z glebius $
31 */
32
33#ifndef _NETINET_IN_H_
34#define _NETINET_IN_H_
35
36#include <sys/cdefs.h>
37#include <sys/_types.h>
38#include <machine/endian.h>
39
40/* Protocols common to RFC 1700, POSIX, and X/Open. */
41#define IPPROTO_IP              0               /* dummy for IP */
42#define IPPROTO_ICMP            1               /* control message protocol */
43#define IPPROTO_TCP             6               /* tcp */
44#define IPPROTO_UDP             17              /* user datagram protocol */
45
46#define INADDR_ANY              ((in_addr_t)0x00000000)
47#define INADDR_BROADCAST        ((in_addr_t)0xffffffff) /* must be masked */
48
49#ifndef _UINT8_T_DECLARED
50typedef __uint8_t               uint8_t;
51#define _UINT8_T_DECLARED
52#endif
53
54#ifndef _UINT16_T_DECLARED
55typedef __uint16_t              uint16_t;
56#define _UINT16_T_DECLARED
57#endif
58
59#ifndef _UINT32_T_DECLARED
60typedef __uint32_t              uint32_t;
61#define _UINT32_T_DECLARED
62#endif
63
64#ifndef _IN_ADDR_T_DECLARED
65typedef uint32_t                in_addr_t;
66#define _IN_ADDR_T_DECLARED
67#endif
68
69#ifndef _IN_PORT_T_DECLARED
70typedef uint16_t                in_port_t;
71#define _IN_PORT_T_DECLARED
72#endif
73
74#ifndef _SA_FAMILY_T_DECLARED
75typedef __sa_family_t           sa_family_t;
76#define _SA_FAMILY_T_DECLARED
77#endif
78
79/* Internet address (a structure for historical reasons). */
80#ifndef _STRUCT_IN_ADDR_DECLARED
81struct in_addr {
82        in_addr_t s_addr;
83};
84#define _STRUCT_IN_ADDR_DECLARED
85#endif
86
87#ifndef _SOCKLEN_T_DECLARED
88typedef __socklen_t     socklen_t;
89#define _SOCKLEN_T_DECLARED
90#endif
91
92#include <sys/_sockaddr_storage.h>
93
94/* Socket address, internet style. */
95struct sockaddr_in {
96        uint8_t sin_len;
97        sa_family_t     sin_family;
98        in_port_t       sin_port;
99        struct  in_addr sin_addr;
100        char    sin_zero[8];
101};
102
103#if !defined(_KERNEL) && __POSIX_VISIBLE >= 200112
104
105#ifndef _BYTEORDER_PROTOTYPED
106#define _BYTEORDER_PROTOTYPED
107__BEGIN_DECLS
108uint32_t        htonl(uint32_t);
109uint16_t        htons(uint16_t);
110uint32_t        ntohl(uint32_t);
111uint16_t        ntohs(uint16_t);
112__END_DECLS
113#endif
114
115#ifndef _BYTEORDER_FUNC_DEFINED
116#define _BYTEORDER_FUNC_DEFINED
117#define htonl(x)        __htonl(x)
118#define htons(x)        __htons(x)
119#define ntohl(x)        __ntohl(x)
120#define ntohs(x)        __ntohs(x)
121#endif
122
123#endif /* !_KERNEL && __POSIX_VISIBLE >= 200112 */
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                                     /* unused; was IP_FAITH */
432#define IP_ONESBCAST            23   /* bool: send all-ones broadcast */
433#define IP_BINDANY              24   /* bool: allow bind to any address */
434#define IP_BINDMULTI            25   /* bool: allow multiple listeners on a tuple */
435#define IP_RSS_LISTEN_BUCKET    26   /* int; set RSS listen bucket */
436
437/*
438 * Options for controlling the firewall and dummynet.
439 * Historical options (from 40 to 64) will eventually be
440 * replaced by only two options, IP_FW3 and IP_DUMMYNET3.
441 */
442#define IP_FW_TABLE_ADD         40   /* add entry */
443#define IP_FW_TABLE_DEL         41   /* delete entry */
444#define IP_FW_TABLE_FLUSH       42   /* flush table */
445#define IP_FW_TABLE_GETSIZE     43   /* get table size */
446#define IP_FW_TABLE_LIST        44   /* list table contents */
447
448#define IP_FW3                  48   /* generic ipfw v.3 sockopts */
449#define IP_DUMMYNET3            49   /* generic dummynet v.3 sockopts */
450
451#define IP_FW_ADD               50   /* add a firewall rule to chain */
452#define IP_FW_DEL               51   /* delete a firewall rule from chain */
453#define IP_FW_FLUSH             52   /* flush firewall rule chain */
454#define IP_FW_ZERO              53   /* clear single/all firewall counter(s) */
455#define IP_FW_GET               54   /* get entire firewall rule chain */
456#define IP_FW_RESETLOG          55   /* reset logging counters */
457
458#define IP_FW_NAT_CFG           56   /* add/config a nat rule */
459#define IP_FW_NAT_DEL           57   /* delete a nat rule */
460#define IP_FW_NAT_GET_CONFIG    58   /* get configuration of a nat rule */
461#define IP_FW_NAT_GET_LOG       59   /* get log of a nat rule */
462
463#define IP_DUMMYNET_CONFIGURE   60   /* add/configure a dummynet pipe */
464#define IP_DUMMYNET_DEL         61   /* delete a dummynet pipe from chain */
465#define IP_DUMMYNET_FLUSH       62   /* flush dummynet */
466#define IP_DUMMYNET_GET         64   /* get entire dummynet pipes */
467
468#define IP_RECVTTL              65   /* bool; receive IP TTL w/dgram */
469#define IP_MINTTL               66   /* minimum TTL for packet or drop */
470#define IP_DONTFRAG             67   /* don't fragment packet */
471#define IP_RECVTOS              68   /* bool; receive IP TOS w/dgram */
472
473/* IPv4 Source Filter Multicast API [RFC3678] */
474#define IP_ADD_SOURCE_MEMBERSHIP        70   /* join a source-specific group */
475#define IP_DROP_SOURCE_MEMBERSHIP       71   /* drop a single source */
476#define IP_BLOCK_SOURCE                 72   /* block a source */
477#define IP_UNBLOCK_SOURCE               73   /* unblock a source */
478
479/* The following option is private; do not use it from user applications. */
480#define IP_MSFILTER                     74   /* set/get filter list */
481
482/* Protocol Independent Multicast API [RFC3678] */
483#define MCAST_JOIN_GROUP                80   /* join an any-source group */
484#define MCAST_LEAVE_GROUP               81   /* leave all sources for group */
485#define MCAST_JOIN_SOURCE_GROUP         82   /* join a source-specific group */
486#define MCAST_LEAVE_SOURCE_GROUP        83   /* leave a single source */
487#define MCAST_BLOCK_SOURCE              84   /* block a source */
488#define MCAST_UNBLOCK_SOURCE            85   /* unblock a source */
489
490/* Flow and RSS definitions */
491#define IP_FLOWID               90   /* get flow id for the given socket/inp */
492#define IP_FLOWTYPE             91   /* get flow type (M_HASHTYPE) */
493#define IP_RSSBUCKETID          92   /* get RSS flowid -> bucket mapping */
494#define IP_RECVFLOWID           93   /* bool; receive IP flowid/flowtype w/ datagram */
495#define IP_RECVRSSBUCKETID      94   /* bool; receive IP RSS bucket id w/ datagram */
496
497/*
498 * Defaults and limits for options
499 */
500#define IP_DEFAULT_MULTICAST_TTL  1     /* normally limit m'casts to 1 hop  */
501#define IP_DEFAULT_MULTICAST_LOOP 1     /* normally hear sends if a member  */
502
503/*
504 * The imo_membership vector for each socket is now dynamically allocated at
505 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
506 * according to a power-of-two increment.
507 */
508#define IP_MIN_MEMBERSHIPS      31
509#define IP_MAX_MEMBERSHIPS      4095
510#define IP_MAX_SOURCE_FILTER    1024    /* XXX to be unused */
511
512/*
513 * Default resource limits for IPv4 multicast source filtering.
514 * These may be modified by sysctl.
515 */
516#define IP_MAX_GROUP_SRC_FILTER         512     /* sources per group */
517#define IP_MAX_SOCK_SRC_FILTER          128     /* sources per socket/group */
518#define IP_MAX_SOCK_MUTE_FILTER         128     /* XXX no longer used */
519
520/*
521 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
522 */
523struct ip_mreq {
524        struct  in_addr imr_multiaddr;  /* IP multicast address of group */
525        struct  in_addr imr_interface;  /* local IP address of interface */
526};
527
528/*
529 * Modified argument structure for IP_MULTICAST_IF, obtained from Linux.
530 * This is used to specify an interface index for multicast sends, as
531 * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available).
532 */
533struct ip_mreqn {
534        struct  in_addr imr_multiaddr;  /* IP multicast address of group */
535        struct  in_addr imr_address;    /* local IP address of interface */
536        int             imr_ifindex;    /* Interface index; cast to uint32_t */
537};
538
539/*
540 * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678]
541 */
542struct ip_mreq_source {
543        struct  in_addr imr_multiaddr;  /* IP multicast address of group */
544        struct  in_addr imr_sourceaddr; /* IP address of source */
545        struct  in_addr imr_interface;  /* local IP address of interface */
546};
547
548/*
549 * Argument structures for Protocol-Independent Multicast Source
550 * Filter APIs. [RFC3678]
551 */
552struct group_req {
553        uint32_t                gr_interface;   /* interface index */
554        struct sockaddr_storage gr_group;       /* group address */
555};
556
557struct group_source_req {
558        uint32_t                gsr_interface;  /* interface index */
559        struct sockaddr_storage gsr_group;      /* group address */
560        struct sockaddr_storage gsr_source;     /* source address */
561};
562
563#ifndef __MSFILTERREQ_DEFINED
564#define __MSFILTERREQ_DEFINED
565/*
566 * The following structure is private; do not use it from user applications.
567 * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between
568 * the RFC 3678 libc functions and the kernel.
569 */
570struct __msfilterreq {
571        uint32_t                 msfr_ifindex;  /* interface index */
572        uint32_t                 msfr_fmode;    /* filter mode for group */
573        uint32_t                 msfr_nsrcs;    /* # of sources in msfr_srcs */
574        struct sockaddr_storage  msfr_group;    /* group address */
575        struct sockaddr_storage *msfr_srcs;     /* pointer to the first member
576                                                 * of a contiguous array of
577                                                 * sources to filter in full.
578                                                 */
579};
580#endif
581
582struct sockaddr;
583
584/*
585 * Advanced (Full-state) APIs [RFC3678]
586 * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter().
587 * We use uint32_t here to be consistent.
588 */
589int     setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t,
590            uint32_t, struct in_addr *);
591int     getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *,
592            uint32_t *, struct in_addr *);
593int     setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
594            uint32_t, uint32_t, struct sockaddr_storage *);
595int     getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
596            uint32_t *, uint32_t *, struct sockaddr_storage *);
597
598/*
599 * Filter modes; also used to represent per-socket filter mode internally.
600 */
601#define MCAST_UNDEFINED 0       /* fmode: not yet defined */
602#define MCAST_INCLUDE   1       /* fmode: include these source(s) */
603#define MCAST_EXCLUDE   2       /* fmode: exclude these source(s) */
604
605/*
606 * Argument for IP_PORTRANGE:
607 * - which range to search when port is unspecified at bind() or connect()
608 */
609#define IP_PORTRANGE_DEFAULT    0       /* default range */
610#define IP_PORTRANGE_HIGH       1       /* "high" - request firewall bypass */
611#define IP_PORTRANGE_LOW        2       /* "low" - vouchsafe security */
612
613/*
614 * Identifiers for IP sysctl nodes
615 */
616#define IPCTL_FORWARDING        1       /* act as router */
617#define IPCTL_SENDREDIRECTS     2       /* may send redirects when forwarding */
618#define IPCTL_DEFTTL            3       /* default TTL */
619#ifdef notyet
620#define IPCTL_DEFMTU            4       /* default MTU */
621#endif
622/*      IPCTL_RTEXPIRE          5       deprecated */
623/*      IPCTL_RTMINEXPIRE       6       deprecated */
624/*      IPCTL_RTMAXCACHE        7       deprecated */
625#define IPCTL_SOURCEROUTE       8       /* may perform source routes */
626#define IPCTL_DIRECTEDBROADCAST 9       /* may re-broadcast received packets */
627#define IPCTL_INTRQMAXLEN       10      /* max length of netisr queue */
628#define IPCTL_INTRQDROPS        11      /* number of netisr q drops */
629#define IPCTL_STATS             12      /* ipstat structure */
630#define IPCTL_ACCEPTSOURCEROUTE 13      /* may accept source routed packets */
631#define IPCTL_FASTFORWARDING    14      /* use fast IP forwarding code */
632                                        /* 15, unused, was: IPCTL_KEEPFAITH  */
633#define IPCTL_GIF_TTL           16      /* default TTL for gif encap packet */
634
635#endif /* __BSD_VISIBLE */
636
637#ifdef _KERNEL
638
639struct ifnet; struct mbuf;      /* forward declarations for Standard C */
640
641int      in_broadcast(struct in_addr, struct ifnet *);
642int      in_canforward(struct in_addr);
643int      in_localaddr(struct in_addr);
644int      in_localip(struct in_addr);
645int      in_ifhasaddr(struct ifnet *, struct in_addr);
646int      inet_aton(const char *, struct in_addr *); /* in libkern */
647char    *inet_ntoa(struct in_addr); /* in libkern */
648char    *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
649char    *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */
650int      inet_pton(int af, const char *, void *); /* in libkern */
651void     in_ifdetach(struct ifnet *);
652
653#define in_hosteq(s, t) ((s).s_addr == (t).s_addr)
654#define in_nullhost(x)  ((x).s_addr == INADDR_ANY)
655#define in_allhosts(x)  ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP))
656
657#define satosin(sa)     ((struct sockaddr_in *)(sa))
658#define sintosa(sin)    ((struct sockaddr *)(sin))
659#define ifatoia(ifa)    ((struct in_ifaddr *)(ifa))
660#endif /* _KERNEL */
661
662/* INET6 stuff */
663#if __POSIX_VISIBLE >= 200112
664#define __KAME_NETINET_IN_H_INCLUDED_
665#include <netinet6/in6.h>
666#undef __KAME_NETINET_IN_H_INCLUDED_
667#endif
668
669#endif /* !_NETINET_IN_H_*/
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