Annotation of embedaddon/pimd/include/freebsd/netinet/in.h, revision 1.1.1.1
1.1 misho 1: /*-
2: * Copyright (c) 1982, 1986, 1990, 1993
3: * The Regents of the University of California. All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 4. Neither the name of the University nor the names of its contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: *
29: * @(#)in.h 8.3 (Berkeley) 1/3/94
30: * $FreeBSD: src/sys/netinet/in.h,v 1.116 2010/08/19 11:31:03 anchie Exp $
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 (u_int32_t)0x00000000
47: #define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */
48:
49: #ifndef _UINT8_T_DECLARED
50: typedef __uint8_t uint8_t;
51: #define _UINT8_T_DECLARED
52: #endif
53:
54: #ifndef _UINT16_T_DECLARED
55: typedef __uint16_t uint16_t;
56: #define _UINT16_T_DECLARED
57: #endif
58:
59: #ifndef _UINT32_T_DECLARED
60: typedef __uint32_t uint32_t;
61: #define _UINT32_T_DECLARED
62: #endif
63:
64: #ifndef _IN_ADDR_T_DECLARED
65: typedef uint32_t in_addr_t;
66: #define _IN_ADDR_T_DECLARED
67: #endif
68:
69: #ifndef _IN_PORT_T_DECLARED
70: typedef uint16_t in_port_t;
71: #define _IN_PORT_T_DECLARED
72: #endif
73:
74: #ifndef _SA_FAMILY_T_DECLARED
75: typedef __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
81: struct in_addr {
82: in_addr_t s_addr;
83: };
84: #define _STRUCT_IN_ADDR_DECLARED
85: #endif
86:
87: #ifndef _SOCKLEN_T_DECLARED
88: typedef __socklen_t socklen_t;
89: #define _SOCKLEN_T_DECLARED
90: #endif
91:
92: #include <sys/_sockaddr_storage.h>
93:
94: /* Socket address, internet style. */
95: struct 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) && __BSD_VISIBLE
104:
105: #ifndef _BYTEORDER_PROTOTYPED
106: #define _BYTEORDER_PROTOTYPED
107: __BEGIN_DECLS
108: uint32_t htonl(uint32_t);
109: uint16_t htons(uint16_t);
110: uint32_t ntohl(uint32_t);
111: uint16_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 && __BSD_VISIBLE */
124:
125: #if __POSIX_VISIBLE >= 200112
126: #define IPPROTO_RAW 255 /* raw IP packet */
127: #define INET_ADDRSTRLEN 16
128: #endif
129:
130: #if __BSD_VISIBLE
131: /*
132: * Constants and structures defined by the internet system,
133: * Per RFC 790, September 1981, and numerous additions.
134: */
135:
136: /*
137: * Protocols (RFC 1700)
138: */
139: #define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
140: #define IPPROTO_IGMP 2 /* group mgmt protocol */
141: #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
142: #define IPPROTO_IPV4 4 /* IPv4 encapsulation */
143: #define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
144: #define IPPROTO_ST 7 /* Stream protocol II */
145: #define IPPROTO_EGP 8 /* exterior gateway protocol */
146: #define IPPROTO_PIGP 9 /* private interior gateway */
147: #define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
148: #define IPPROTO_NVPII 11 /* network voice protocol*/
149: #define IPPROTO_PUP 12 /* pup */
150: #define IPPROTO_ARGUS 13 /* Argus */
151: #define IPPROTO_EMCON 14 /* EMCON */
152: #define IPPROTO_XNET 15 /* Cross Net Debugger */
153: #define IPPROTO_CHAOS 16 /* Chaos*/
154: #define IPPROTO_MUX 18 /* Multiplexing */
155: #define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
156: #define IPPROTO_HMP 20 /* Host Monitoring */
157: #define IPPROTO_PRM 21 /* Packet Radio Measurement */
158: #define IPPROTO_IDP 22 /* xns idp */
159: #define IPPROTO_TRUNK1 23 /* Trunk-1 */
160: #define IPPROTO_TRUNK2 24 /* Trunk-2 */
161: #define IPPROTO_LEAF1 25 /* Leaf-1 */
162: #define IPPROTO_LEAF2 26 /* Leaf-2 */
163: #define IPPROTO_RDP 27 /* Reliable Data */
164: #define IPPROTO_IRTP 28 /* Reliable Transaction */
165: #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
166: #define IPPROTO_BLT 30 /* Bulk Data Transfer */
167: #define IPPROTO_NSP 31 /* Network Services */
168: #define IPPROTO_INP 32 /* Merit Internodal */
169: #define IPPROTO_SEP 33 /* Sequential Exchange */
170: #define IPPROTO_3PC 34 /* Third Party Connect */
171: #define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
172: #define IPPROTO_XTP 36 /* XTP */
173: #define IPPROTO_DDP 37 /* Datagram Delivery */
174: #define IPPROTO_CMTP 38 /* Control Message Transport */
175: #define IPPROTO_TPXX 39 /* TP++ Transport */
176: #define IPPROTO_IL 40 /* IL transport protocol */
177: #define IPPROTO_IPV6 41 /* IP6 header */
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: /* 101-254: Partly Unassigned */
241: #define IPPROTO_PIM 103 /* Protocol Independent Mcast */
242: #define IPPROTO_CARP 112 /* CARP */
243: #define IPPROTO_PGM 113 /* PGM */
244: #define IPPROTO_PFSYNC 240 /* PFSYNC */
245: /* 255: Reserved */
246: /* BSD Private, local use, namespace incursion, no longer used */
247: #define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */
248: #define IPPROTO_MAX 256
249:
250: /* last return value of *_input(), meaning "all job for this pkt is done". */
251: #define IPPROTO_DONE 257
252:
253: /* Only used internally, so can be outside the range of valid IP protocols. */
254: #define IPPROTO_DIVERT 258 /* divert pseudo-protocol */
255: #define IPPROTO_SEND 259 /* SeND pseudo-protocol */
256:
257: /*
258: * Defined to avoid confusion. The master value is defined by
259: * PROTO_SPACER in sys/protosw.h.
260: */
261: #define IPPROTO_SPACER 32767 /* spacer for loadable protos */
262:
263: /*
264: * Local port number conventions:
265: *
266: * When a user does a bind(2) or connect(2) with a port number of zero,
267: * a non-conflicting local port address is chosen.
268: * The default range is IPPORT_HIFIRSTAUTO through
269: * IPPORT_HILASTAUTO, although that is settable by sysctl.
270: *
271: * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
272: * default assignment range.
273: *
274: * The value IP_PORTRANGE_DEFAULT causes the default behavior.
275: *
276: * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
277: * into the "high" range. These are reserved for client outbound connections
278: * which do not want to be filtered by any firewalls.
279: *
280: * The value IP_PORTRANGE_LOW changes the range to the "low" are
281: * that is (by convention) restricted to privileged processes. This
282: * convention is based on "vouchsafe" principles only. It is only secure
283: * if you trust the remote host to restrict these ports.
284: *
285: * The default range of ports and the high range can be changed by
286: * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
287: *
288: * Changing those values has bad security implications if you are
289: * using a stateless firewall that is allowing packets outside of that
290: * range in order to allow transparent outgoing connections.
291: *
292: * Such a firewall configuration will generally depend on the use of these
293: * default values. If you change them, you may find your Security
294: * Administrator looking for you with a heavy object.
295: *
296: * For a slightly more orthodox text view on this:
297: *
298: * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
299: *
300: * port numbers are divided into three ranges:
301: *
302: * 0 - 1023 Well Known Ports
303: * 1024 - 49151 Registered Ports
304: * 49152 - 65535 Dynamic and/or Private Ports
305: *
306: */
307:
308: /*
309: * Ports < IPPORT_RESERVED are reserved for
310: * privileged processes (e.g. root). (IP_PORTRANGE_LOW)
311: */
312: #define IPPORT_RESERVED 1024
313:
314: /*
315: * Default local port range, used by IP_PORTRANGE_DEFAULT
316: */
317: #define IPPORT_EPHEMERALFIRST 10000
318: #define IPPORT_EPHEMERALLAST 65535
319:
320: /*
321: * Dynamic port range, used by IP_PORTRANGE_HIGH.
322: */
323: #define IPPORT_HIFIRSTAUTO 49152
324: #define IPPORT_HILASTAUTO 65535
325:
326: /*
327: * Scanning for a free reserved port return a value below IPPORT_RESERVED,
328: * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
329: * 512, but that conflicts with some well-known-services that firewalls may
330: * have a fit if we use.
331: */
332: #define IPPORT_RESERVEDSTART 600
333:
334: #define IPPORT_MAX 65535
335:
336: /*
337: * Definitions of bits in internet address integers.
338: * On subnets, the decomposition of addresses to host and net parts
339: * is done according to subnet mask, not the masks here.
340: */
341: #define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0)
342: #define IN_CLASSA_NET 0xff000000
343: #define IN_CLASSA_NSHIFT 24
344: #define IN_CLASSA_HOST 0x00ffffff
345: #define IN_CLASSA_MAX 128
346:
347: #define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000)
348: #define IN_CLASSB_NET 0xffff0000
349: #define IN_CLASSB_NSHIFT 16
350: #define IN_CLASSB_HOST 0x0000ffff
351: #define IN_CLASSB_MAX 65536
352:
353: #define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
354: #define IN_CLASSC_NET 0xffffff00
355: #define IN_CLASSC_NSHIFT 8
356: #define IN_CLASSC_HOST 0x000000ff
357:
358: #define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
359: #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
360: #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
361: #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
362: #define IN_MULTICAST(i) IN_CLASSD(i)
363:
364: #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
365: #define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
366:
367: #define IN_LINKLOCAL(i) (((u_int32_t)(i) & 0xffff0000) == 0xa9fe0000)
368: #define IN_LOOPBACK(i) (((u_int32_t)(i) & 0xff000000) == 0x7f000000)
369: #define IN_ZERONET(i) (((u_int32_t)(i) & 0xff000000) == 0)
370:
371: #define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \
372: (((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \
373: (((u_int32_t)(i) & 0xffff0000) == 0xc0a80000))
374:
375: #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000)
376:
377: #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i))
378:
379: #define INADDR_LOOPBACK (u_int32_t)0x7f000001
380: #ifndef _KERNEL
381: #define INADDR_NONE 0xffffffff /* -1 return */
382: #endif
383:
384: #define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */
385: #define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */
386: #define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */
387: #define INADDR_ALLRPTS_GROUP (u_int32_t)0xe0000016 /* 224.0.0.22, IGMPv3 */
388: #define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */
389: #define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */
390: #define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */
391: #define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */
392:
393: #define IN_LOOPBACKNET 127 /* official! */
394:
395: /*
396: * Options for use with [gs]etsockopt at the IP level.
397: * First word of comment is data type; bool is stored in int.
398: */
399: #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
400: #define IP_HDRINCL 2 /* int; header is included with data */
401: #define IP_TOS 3 /* int; IP type of service and preced. */
402: #define IP_TTL 4 /* int; IP time to live */
403: #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
404: #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
405: #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
406: #define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */
407: #define IP_RETOPTS 8 /* ip_opts; set/get IP options */
408: #define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn;
409: * set/get IP multicast i/f */
410: #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
411: #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
412: #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
413: #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
414: #define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
415: #define IP_RSVP_ON 15 /* enable RSVP in kernel */
416: #define IP_RSVP_OFF 16 /* disable RSVP in kernel */
417: #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
418: #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
419: #define IP_PORTRANGE 19 /* int; range to choose for unspec port */
420: #define IP_RECVIF 20 /* bool; receive reception if w/dgram */
421: /* for IPSEC */
422: #define IP_IPSEC_POLICY 21 /* int; set/get security policy */
423: #define IP_FAITH 22 /* bool; accept FAITH'ed connections */
424:
425: #define IP_ONESBCAST 23 /* bool: send all-ones broadcast */
426: #define IP_BINDANY 24 /* bool: allow bind to any address */
427:
428: /*
429: * Options for controlling the firewall and dummynet.
430: * Historical options (from 40 to 64) will eventually be
431: * replaced by only two options, IP_FW3 and IP_DUMMYNET3.
432: */
433: #define IP_FW_TABLE_ADD 40 /* add entry */
434: #define IP_FW_TABLE_DEL 41 /* delete entry */
435: #define IP_FW_TABLE_FLUSH 42 /* flush table */
436: #define IP_FW_TABLE_GETSIZE 43 /* get table size */
437: #define IP_FW_TABLE_LIST 44 /* list table contents */
438:
439: #define IP_FW3 48 /* generic ipfw v.3 sockopts */
440: #define IP_DUMMYNET3 49 /* generic dummynet v.3 sockopts */
441:
442: #define IP_FW_ADD 50 /* add a firewall rule to chain */
443: #define IP_FW_DEL 51 /* delete a firewall rule from chain */
444: #define IP_FW_FLUSH 52 /* flush firewall rule chain */
445: #define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
446: #define IP_FW_GET 54 /* get entire firewall rule chain */
447: #define IP_FW_RESETLOG 55 /* reset logging counters */
448:
449: #define IP_FW_NAT_CFG 56 /* add/config a nat rule */
450: #define IP_FW_NAT_DEL 57 /* delete a nat rule */
451: #define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */
452: #define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */
453:
454: #define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */
455: #define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */
456: #define IP_DUMMYNET_FLUSH 62 /* flush dummynet */
457: #define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */
458:
459: #define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */
460: #define IP_MINTTL 66 /* minimum TTL for packet or drop */
461: #define IP_DONTFRAG 67 /* don't fragment packet */
462:
463: /* IPv4 Source Filter Multicast API [RFC3678] */
464: #define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */
465: #define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */
466: #define IP_BLOCK_SOURCE 72 /* block a source */
467: #define IP_UNBLOCK_SOURCE 73 /* unblock a source */
468:
469: /* The following option is private; do not use it from user applications. */
470: #define IP_MSFILTER 74 /* set/get filter list */
471:
472: /* Protocol Independent Multicast API [RFC3678] */
473: #define MCAST_JOIN_GROUP 80 /* join an any-source group */
474: #define MCAST_LEAVE_GROUP 81 /* leave all sources for group */
475: #define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */
476: #define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */
477: #define MCAST_BLOCK_SOURCE 84 /* block a source */
478: #define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */
479:
480: /*
481: * Defaults and limits for options
482: */
483: #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
484: #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
485:
486: /*
487: * The imo_membership vector for each socket is now dynamically allocated at
488: * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
489: * according to a power-of-two increment.
490: */
491: #define IP_MIN_MEMBERSHIPS 31
492: #define IP_MAX_MEMBERSHIPS 4095
493: #define IP_MAX_SOURCE_FILTER 1024 /* XXX to be unused */
494:
495: /*
496: * Default resource limits for IPv4 multicast source filtering.
497: * These may be modified by sysctl.
498: */
499: #define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */
500: #define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
501: #define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */
502:
503: /*
504: * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
505: */
506: struct ip_mreq {
507: struct in_addr imr_multiaddr; /* IP multicast address of group */
508: struct in_addr imr_interface; /* local IP address of interface */
509: };
510:
511: /*
512: * Modified argument structure for IP_MULTICAST_IF, obtained from Linux.
513: * This is used to specify an interface index for multicast sends, as
514: * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available).
515: */
516: struct ip_mreqn {
517: struct in_addr imr_multiaddr; /* IP multicast address of group */
518: struct in_addr imr_address; /* local IP address of interface */
519: int imr_ifindex; /* Interface index; cast to uint32_t */
520: };
521:
522: /*
523: * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678]
524: */
525: struct ip_mreq_source {
526: struct in_addr imr_multiaddr; /* IP multicast address of group */
527: struct in_addr imr_sourceaddr; /* IP address of source */
528: struct in_addr imr_interface; /* local IP address of interface */
529: };
530:
531: /*
532: * Argument structures for Protocol-Independent Multicast Source
533: * Filter APIs. [RFC3678]
534: */
535: struct group_req {
536: uint32_t gr_interface; /* interface index */
537: struct sockaddr_storage gr_group; /* group address */
538: };
539:
540: struct group_source_req {
541: uint32_t gsr_interface; /* interface index */
542: struct sockaddr_storage gsr_group; /* group address */
543: struct sockaddr_storage gsr_source; /* source address */
544: };
545:
546: #ifndef __MSFILTERREQ_DEFINED
547: #define __MSFILTERREQ_DEFINED
548: /*
549: * The following structure is private; do not use it from user applications.
550: * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between
551: * the RFC 3678 libc functions and the kernel.
552: */
553: struct __msfilterreq {
554: uint32_t msfr_ifindex; /* interface index */
555: uint32_t msfr_fmode; /* filter mode for group */
556: uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */
557: struct sockaddr_storage msfr_group; /* group address */
558: struct sockaddr_storage *msfr_srcs; /* pointer to the first member
559: * of a contiguous array of
560: * sources to filter in full.
561: */
562: };
563: #endif
564:
565: struct sockaddr;
566:
567: /*
568: * Advanced (Full-state) APIs [RFC3678]
569: * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter().
570: * We use uint32_t here to be consistent.
571: */
572: int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t,
573: uint32_t, struct in_addr *);
574: int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *,
575: uint32_t *, struct in_addr *);
576: int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
577: uint32_t, uint32_t, struct sockaddr_storage *);
578: int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t,
579: uint32_t *, uint32_t *, struct sockaddr_storage *);
580:
581: /*
582: * Filter modes; also used to represent per-socket filter mode internally.
583: */
584: #define MCAST_UNDEFINED 0 /* fmode: not yet defined */
585: #define MCAST_INCLUDE 1 /* fmode: include these source(s) */
586: #define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */
587:
588: /*
589: * Argument for IP_PORTRANGE:
590: * - which range to search when port is unspecified at bind() or connect()
591: */
592: #define IP_PORTRANGE_DEFAULT 0 /* default range */
593: #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
594: #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
595:
596: /*
597: * Definitions for inet sysctl operations.
598: *
599: * Third level is protocol number.
600: * Fourth level is desired variable within that protocol.
601: */
602: #define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */
603:
604: #define CTL_IPPROTO_NAMES { \
605: { "ip", CTLTYPE_NODE }, \
606: { "icmp", CTLTYPE_NODE }, \
607: { "igmp", CTLTYPE_NODE }, \
608: { "ggp", CTLTYPE_NODE }, \
609: { 0, 0 }, \
610: { 0, 0 }, \
611: { "tcp", CTLTYPE_NODE }, \
612: { 0, 0 }, \
613: { "egp", CTLTYPE_NODE }, \
614: { 0, 0 }, \
615: { 0, 0 }, \
616: { 0, 0 }, \
617: { "pup", CTLTYPE_NODE }, \
618: { 0, 0 }, \
619: { 0, 0 }, \
620: { 0, 0 }, \
621: { 0, 0 }, \
622: { "udp", CTLTYPE_NODE }, \
623: { 0, 0 }, \
624: { 0, 0 }, \
625: { 0, 0 }, \
626: { 0, 0 }, \
627: { "idp", CTLTYPE_NODE }, \
628: { 0, 0 }, \
629: { 0, 0 }, \
630: { 0, 0 }, \
631: { 0, 0 }, \
632: { 0, 0 }, \
633: { 0, 0 }, \
634: { 0, 0 }, \
635: { 0, 0 }, \
636: { 0, 0 }, \
637: { 0, 0 }, \
638: { 0, 0 }, \
639: { 0, 0 }, \
640: { 0, 0 }, \
641: { 0, 0 }, \
642: { 0, 0 }, \
643: { 0, 0 }, \
644: { 0, 0 }, \
645: { 0, 0 }, \
646: { 0, 0 }, \
647: { 0, 0 }, \
648: { 0, 0 }, \
649: { 0, 0 }, \
650: { 0, 0 }, \
651: { 0, 0 }, \
652: { 0, 0 }, \
653: { 0, 0 }, \
654: { 0, 0 }, \
655: { 0, 0 }, \
656: { "ipsec", CTLTYPE_NODE }, \
657: { 0, 0 }, \
658: { 0, 0 }, \
659: { 0, 0 }, \
660: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
661: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
662: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
663: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
664: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
665: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
666: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
667: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
668: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
669: { 0, 0 }, \
670: { 0, 0 }, \
671: { 0, 0 }, \
672: { "pim", CTLTYPE_NODE }, \
673: }
674:
675: /*
676: * Names for IP sysctl objects
677: */
678: #define IPCTL_FORWARDING 1 /* act as router */
679: #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
680: #define IPCTL_DEFTTL 3 /* default TTL */
681: #ifdef notyet
682: #define IPCTL_DEFMTU 4 /* default MTU */
683: #endif
684: #define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
685: #define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
686: #define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
687: #define IPCTL_SOURCEROUTE 8 /* may perform source routes */
688: #define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
689: #define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
690: #define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
691: #define IPCTL_STATS 12 /* ipstat structure */
692: #define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
693: #define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
694: #define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
695: #define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
696: #define IPCTL_MAXID 17
697:
698: #define IPCTL_NAMES { \
699: { 0, 0 }, \
700: { "forwarding", CTLTYPE_INT }, \
701: { "redirect", CTLTYPE_INT }, \
702: { "ttl", CTLTYPE_INT }, \
703: { "mtu", CTLTYPE_INT }, \
704: { "rtexpire", CTLTYPE_INT }, \
705: { "rtminexpire", CTLTYPE_INT }, \
706: { "rtmaxcache", CTLTYPE_INT }, \
707: { "sourceroute", CTLTYPE_INT }, \
708: { "directed-broadcast", CTLTYPE_INT }, \
709: { "intr-queue-maxlen", CTLTYPE_INT }, \
710: { "intr-queue-drops", CTLTYPE_INT }, \
711: { "stats", CTLTYPE_STRUCT }, \
712: { "accept_sourceroute", CTLTYPE_INT }, \
713: { "fastforwarding", CTLTYPE_INT }, \
714: }
715:
716: #endif /* __BSD_VISIBLE */
717:
718: #ifdef _KERNEL
719:
720: struct ifnet; struct mbuf; /* forward declarations for Standard C */
721:
722: int in_broadcast(struct in_addr, struct ifnet *);
723: int in_canforward(struct in_addr);
724: int in_localaddr(struct in_addr);
725: int in_localip(struct in_addr);
726: int inet_aton(const char *, struct in_addr *); /* in libkern */
727: char *inet_ntoa(struct in_addr); /* in libkern */
728: char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
729: void in_ifdetach(struct ifnet *);
730:
731: #define in_hosteq(s, t) ((s).s_addr == (t).s_addr)
732: #define in_nullhost(x) ((x).s_addr == INADDR_ANY)
733: #define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP))
734:
735: #define satosin(sa) ((struct sockaddr_in *)(sa))
736: #define sintosa(sin) ((struct sockaddr *)(sin))
737: #define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
738:
739: /*
740: * Historically, BSD keeps ip_len and ip_off in host format
741: * when doing layer 3 processing, and this often requires
742: * to translate the format back and forth.
743: * To make the process explicit, we define a couple of macros
744: * that also take into account the fact that at some point
745: * we may want to keep those fields always in net format.
746: */
747:
748: #if (BYTE_ORDER == BIG_ENDIAN) || defined(HAVE_NET_IPLEN)
749: #define SET_NET_IPLEN(p) do {} while (0)
750: #define SET_HOST_IPLEN(p) do {} while (0)
751: #else
752: #define SET_NET_IPLEN(p) do { \
753: struct ip *h_ip = (p); \
754: h_ip->ip_len = htons(h_ip->ip_len); \
755: h_ip->ip_off = htons(h_ip->ip_off); \
756: } while (0)
757:
758: #define SET_HOST_IPLEN(p) do { \
759: struct ip *h_ip = (p); \
760: h_ip->ip_len = ntohs(h_ip->ip_len); \
761: h_ip->ip_off = ntohs(h_ip->ip_off); \
762: } while (0)
763: #endif /* !HAVE_NET_IPLEN */
764:
765: #endif /* _KERNEL */
766:
767: /* INET6 stuff */
768: #if __POSIX_VISIBLE >= 200112
769: #define __KAME_NETINET_IN_H_INCLUDED_
770: #include <netinet6/in6.h>
771: #undef __KAME_NETINET_IN_H_INCLUDED_
772: #endif
773:
774: #endif /* !_NETINET_IN_H_*/
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