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
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/* Socket address, internet style. */
88struct sockaddr_in {
89 uint8_t sin_len;
90 sa_family_t sin_family;
91 in_port_t sin_port;
92 struct in_addr sin_addr;
93 char sin_zero[8];
94};
95
96#ifndef _KERNEL
97
98#ifndef _BYTEORDER_PROTOTYPED
99#define _BYTEORDER_PROTOTYPED
100__BEGIN_DECLS
101uint32_t htonl(uint32_t);
102uint16_t htons(uint16_t);
103uint32_t ntohl(uint32_t);
104uint16_t ntohs(uint16_t);
105__END_DECLS
106#endif
107
108#ifndef _BYTEORDER_FUNC_DEFINED
109#define _BYTEORDER_FUNC_DEFINED
110#define htonl(x) __htonl(x)
111#define htons(x) __htons(x)
112#define ntohl(x) __ntohl(x)
113#define ntohs(x) __ntohs(x)
114#endif
115
116#endif /* !_KERNEL */
117
118#if __POSIX_VISIBLE >= 200112
119#define IPPROTO_RAW 255 /* raw IP packet */
120#define INET_ADDRSTRLEN 16
121#endif
122
123#if __BSD_VISIBLE
124/*
125 * Constants and structures defined by the internet system,
126 * Per RFC 790, September 1981, and numerous additions.
127 */
128
129/*
130 * Protocols (RFC 1700)
131 */
132#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
133#define IPPROTO_IGMP 2 /* group mgmt protocol */
134#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
135#define IPPROTO_IPV4 4 /* IPv4 encapsulation */
136#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
137#define IPPROTO_ST 7 /* Stream protocol II */
138#define IPPROTO_EGP 8 /* exterior gateway protocol */
139#define IPPROTO_PIGP 9 /* private interior gateway */
140#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
141#define IPPROTO_NVPII 11 /* network voice protocol*/
142#define IPPROTO_PUP 12 /* pup */
143#define IPPROTO_ARGUS 13 /* Argus */
144#define IPPROTO_EMCON 14 /* EMCON */
145#define IPPROTO_XNET 15 /* Cross Net Debugger */
146#define IPPROTO_CHAOS 16 /* Chaos*/
147#define IPPROTO_MUX 18 /* Multiplexing */
148#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
149#define IPPROTO_HMP 20 /* Host Monitoring */
150#define IPPROTO_PRM 21 /* Packet Radio Measurement */
151#define IPPROTO_IDP 22 /* xns idp */
152#define IPPROTO_TRUNK1 23 /* Trunk-1 */
153#define IPPROTO_TRUNK2 24 /* Trunk-2 */
154#define IPPROTO_LEAF1 25 /* Leaf-1 */
155#define IPPROTO_LEAF2 26 /* Leaf-2 */
156#define IPPROTO_RDP 27 /* Reliable Data */
157#define IPPROTO_IRTP 28 /* Reliable Transaction */
158#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
159#define IPPROTO_BLT 30 /* Bulk Data Transfer */
160#define IPPROTO_NSP 31 /* Network Services */
161#define IPPROTO_INP 32 /* Merit Internodal */
162#define IPPROTO_SEP 33 /* Sequential Exchange */
163#define IPPROTO_3PC 34 /* Third Party Connect */
164#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
165#define IPPROTO_XTP 36 /* XTP */
166#define IPPROTO_DDP 37 /* Datagram Delivery */
167#define IPPROTO_CMTP 38 /* Control Message Transport */
168#define IPPROTO_TPXX 39 /* TP++ Transport */
169#define IPPROTO_IL 40 /* IL transport protocol */
170#define IPPROTO_IPV6 41 /* IP6 header */
171#define IPPROTO_SDRP 42 /* Source Demand Routing */
172#define IPPROTO_ROUTING 43 /* IP6 routing header */
173#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
174#define IPPROTO_IDRP 45 /* InterDomain Routing*/
175#define IPPROTO_RSVP 46 /* resource reservation */
176#define IPPROTO_GRE 47 /* General Routing Encap. */
177#define IPPROTO_MHRP 48 /* Mobile Host Routing */
178#define IPPROTO_BHA 49 /* BHA */
179#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
180#define IPPROTO_AH 51 /* IP6 Auth Header */
181#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */
182#define IPPROTO_SWIPE 53 /* IP with encryption */
183#define IPPROTO_NHRP 54 /* Next Hop Resolution */
184#define IPPROTO_MOBILE 55 /* IP Mobility */
185#define IPPROTO_TLSP 56 /* Transport Layer Security */
186#define IPPROTO_SKIP 57 /* SKIP */
187#define IPPROTO_ICMPV6 58 /* ICMP6 */
188#define IPPROTO_NONE 59 /* IP6 no next header */
189#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
190#define IPPROTO_AHIP 61 /* any host internal protocol */
191#define IPPROTO_CFTP 62 /* CFTP */
192#define IPPROTO_HELLO 63 /* "hello" routing protocol */
193#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */
194#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */
195#define IPPROTO_RVD 66 /* Remote Virtual Disk */
196#define IPPROTO_IPPC 67 /* Pluribus Packet Core */
197#define IPPROTO_ADFS 68 /* Any distributed FS */
198#define IPPROTO_SATMON 69 /* Satnet Monitoring */
199#define IPPROTO_VISA 70 /* VISA Protocol */
200#define IPPROTO_IPCV 71 /* Packet Core Utility */
201#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */
202#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */
203#define IPPROTO_WSN 74 /* Wang Span Network */
204#define IPPROTO_PVP 75 /* Packet Video Protocol */
205#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */
206#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */
207#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */
208#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
209#define IPPROTO_EON 80 /* ISO cnlp */
210#define IPPROTO_VMTP 81 /* VMTP */
211#define IPPROTO_SVMTP 82 /* Secure VMTP */
212#define IPPROTO_VINES 83 /* Banyon VINES */
213#define IPPROTO_TTP 84 /* TTP */
214#define IPPROTO_IGP 85 /* NSFNET-IGP */
215#define IPPROTO_DGP 86 /* dissimilar gateway prot. */
216#define IPPROTO_TCF 87 /* TCF */
217#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */
218#define IPPROTO_OSPFIGP 89 /* OSPFIGP */
219#define IPPROTO_SRPC 90 /* Strite RPC protocol */
220#define IPPROTO_LARP 91 /* Locus Address Resoloution */
221#define IPPROTO_MTP 92 /* Multicast Transport */
222#define IPPROTO_AX25 93 /* AX.25 Frames */
223#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */
224#define IPPROTO_MICP 95 /* Mobile Int.ing control */
225#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */
226#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */
227#define IPPROTO_ENCAP 98 /* encapsulation header */
228#define IPPROTO_APES 99 /* any private encr. scheme */
229#define IPPROTO_GMTP 100 /* GMTP*/
230#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */
231/* 101-254: Partly Unassigned */
232#define IPPROTO_PIM 103 /* Protocol Independent Mcast */
233#define IPPROTO_CARP 112 /* CARP */
234#define IPPROTO_PGM 113 /* PGM */
235#define IPPROTO_PFSYNC 240 /* PFSYNC */
236/* 255: Reserved */
237/* BSD Private, local use, namespace incursion, no longer used */
238#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */
239#define IPPROTO_MAX 256
240
241/* last return value of *_input(), meaning "all job for this pkt is done". */
242#define IPPROTO_DONE 257
243
244/* Only used internally, so can be outside the range of valid IP protocols. */
245#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */
246
247/*
248 * Defined to avoid confusion. The master value is defined by
249 * PROTO_SPACER in sys/protosw.h.
250 */
251#define IPPROTO_SPACER 32767 /* spacer for loadable protos */
252
253/*
254 * Local port number conventions:
255 *
256 * When a user does a bind(2) or connect(2) with a port number of zero,
257 * a non-conflicting local port address is chosen.
258 * The default range is IPPORT_HIFIRSTAUTO through
259 * IPPORT_HILASTAUTO, although that is settable by sysctl.
260 *
261 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
262 * default assignment range.
263 *
264 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
265 *
266 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
267 * into the "high" range. These are reserved for client outbound connections
268 * which do not want to be filtered by any firewalls. Note that by default
269 * this is the same as IP_PORTRANGE_DEFAULT.
270 *
271 * The value IP_PORTRANGE_LOW changes the range to the "low" are
272 * that is (by convention) restricted to privileged processes. This
273 * convention is based on "vouchsafe" principles only. It is only secure
274 * if you trust the remote host to restrict these ports.
275 *
276 * The default range of ports and the high range can be changed by
277 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
278 *
279 * Changing those values has bad security implications if you are
280 * using a stateless firewall that is allowing packets outside of that
281 * range in order to allow transparent outgoing connections.
282 *
283 * Such a firewall configuration will generally depend on the use of these
284 * default values. If you change them, you may find your Security
285 * Administrator looking for you with a heavy object.
286 *
287 * For a slightly more orthodox text view on this:
288 *
289 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
290 *
291 * port numbers are divided into three ranges:
292 *
293 * 0 - 1023 Well Known Ports
294 * 1024 - 49151 Registered Ports
295 * 49152 - 65535 Dynamic and/or Private Ports
296 *
297 */
298
299/*
300 * Ports < IPPORT_RESERVED are reserved for
301 * privileged processes (e.g. root). (IP_PORTRANGE_LOW)
302 */
303#define IPPORT_RESERVED 1024
304
305/*
306 * Default local port range, used by both IP_PORTRANGE_DEFAULT
307 * and IP_PORTRANGE_HIGH.
308 */
309#define IPPORT_HIFIRSTAUTO 49152
310#define IPPORT_HILASTAUTO 65535
311
312/*
313 * Scanning for a free reserved port return a value below IPPORT_RESERVED,
314 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
315 * 512, but that conflicts with some well-known-services that firewalls may
316 * have a fit if we use.
317 */
318#define IPPORT_RESERVEDSTART 600
319
320#define IPPORT_MAX 65535
321
322/*
323 * Definitions of bits in internet address integers.
324 * On subnets, the decomposition of addresses to host and net parts
325 * is done according to subnet mask, not the masks here.
326 */
327#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0)
328#define IN_CLASSA_NET 0xff000000
329#define IN_CLASSA_NSHIFT 24
330#define IN_CLASSA_HOST 0x00ffffff
331#define IN_CLASSA_MAX 128
332
333#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000)
334#define IN_CLASSB_NET 0xffff0000
335#define IN_CLASSB_NSHIFT 16
336#define IN_CLASSB_HOST 0x0000ffff
337#define IN_CLASSB_MAX 65536
338
339#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
340#define IN_CLASSC_NET 0xffffff00
341#define IN_CLASSC_NSHIFT 8
342#define IN_CLASSC_HOST 0x000000ff
343
344#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
345#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
346#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
347#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
348#define IN_MULTICAST(i) IN_CLASSD(i)
349
350#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
351#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
352
353#define INADDR_LOOPBACK (u_int32_t)0x7f000001
354#ifndef _KERNEL
355#define INADDR_NONE 0xffffffff /* -1 return */
356#endif
357
358#define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */
359#define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */
360#define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */
361#define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */
362#define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */
363#define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */
364#define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */
365
366#define IN_LOOPBACKNET 127 /* official! */
367
368/*
369 * Options for use with [gs]etsockopt at the IP level.
370 * First word of comment is data type; bool is stored in int.
371 */
372#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
373#define IP_HDRINCL 2 /* int; header is included with data */
374#define IP_TOS 3 /* int; IP type of service and preced. */
375#define IP_TTL 4 /* int; IP time to live */
376#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
377#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
378#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
379#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */
380#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
381#define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */
382#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
383#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
384#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
385#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
386#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
387#define IP_RSVP_ON 15 /* enable RSVP in kernel */
388#define IP_RSVP_OFF 16 /* disable RSVP in kernel */
389#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
390#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
391#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
392#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
393/* for IPSEC */
394#define IP_IPSEC_POLICY 21 /* int; set/get security policy */
395#define IP_FAITH 22 /* bool; accept FAITH'ed connections */
396
397#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */
398
399#define IP_FW_TABLE_ADD 40 /* add entry */
400#define IP_FW_TABLE_DEL 41 /* delete entry */
401#define IP_FW_TABLE_FLUSH 42 /* flush table */
402#define IP_FW_TABLE_GETSIZE 43 /* get table size */
403#define IP_FW_TABLE_LIST 44 /* list table contents */
404
405#define IP_FW_ADD 50 /* add a firewall rule to chain */
406#define IP_FW_DEL 51 /* delete a firewall rule from chain */
407#define IP_FW_FLUSH 52 /* flush firewall rule chain */
408#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
409#define IP_FW_GET 54 /* get entire firewall rule chain */
410#define IP_FW_RESETLOG 55 /* reset logging counters */
411
412#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */
413#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */
414#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */
415#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */
416
417#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */
418#define IP_MINTTL 66 /* minimum TTL for packet or drop */
419
420/*
421 * Defaults and limits for options
422 */
423#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
424#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
425#define IP_MAX_MEMBERSHIPS 20 /* per socket */
426
427/*
428 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
429 */
430struct ip_mreq {
431 struct in_addr imr_multiaddr; /* IP multicast address of group */
432 struct in_addr imr_interface; /* local IP address of interface */
433};
434
435/*
436 * Argument for IP_PORTRANGE:
437 * - which range to search when port is unspecified at bind() or connect()
438 */
439#define IP_PORTRANGE_DEFAULT 0 /* default range */
440#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
441#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
442
443/*
444 * Definitions for inet sysctl operations.
445 *
446 * Third level is protocol number.
447 * Fourth level is desired variable within that protocol.
448 */
449#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */
450
451#define CTL_IPPROTO_NAMES { \
452 { "ip", CTLTYPE_NODE }, \
453 { "icmp", CTLTYPE_NODE }, \
454 { "igmp", CTLTYPE_NODE }, \
455 { "ggp", CTLTYPE_NODE }, \
456 { 0, 0 }, \
457 { 0, 0 }, \
458 { "tcp", CTLTYPE_NODE }, \
459 { 0, 0 }, \
460 { "egp", CTLTYPE_NODE }, \
461 { 0, 0 }, \
462 { 0, 0 }, \
463 { 0, 0 }, \
464 { "pup", CTLTYPE_NODE }, \
465 { 0, 0 }, \
466 { 0, 0 }, \
467 { 0, 0 }, \
468 { 0, 0 }, \
469 { "udp", CTLTYPE_NODE }, \
470 { 0, 0 }, \
471 { 0, 0 }, \
472 { 0, 0 }, \
473 { 0, 0 }, \
474 { "idp", CTLTYPE_NODE }, \
475 { 0, 0 }, \
476 { 0, 0 }, \
477 { 0, 0 }, \
478 { 0, 0 }, \
479 { 0, 0 }, \
480 { 0, 0 }, \
481 { 0, 0 }, \
482 { 0, 0 }, \
483 { 0, 0 }, \
484 { 0, 0 }, \
485 { 0, 0 }, \
486 { 0, 0 }, \
487 { 0, 0 }, \
488 { 0, 0 }, \
489 { 0, 0 }, \
490 { 0, 0 }, \
491 { 0, 0 }, \
492 { 0, 0 }, \
493 { 0, 0 }, \
494 { 0, 0 }, \
495 { 0, 0 }, \
496 { 0, 0 }, \
497 { 0, 0 }, \
498 { 0, 0 }, \
499 { 0, 0 }, \
500 { 0, 0 }, \
501 { 0, 0 }, \
502 { 0, 0 }, \
503 { "ipsec", CTLTYPE_NODE }, \
504 { 0, 0 }, \
505 { 0, 0 }, \
506 { 0, 0 }, \
507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
508 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
509 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
510 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
511 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
512 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
513 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
514 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
516 { 0, 0 }, \
517 { 0, 0 }, \
518 { 0, 0 }, \
519 { "pim", CTLTYPE_NODE }, \
520}
521
522/*
523 * Names for IP sysctl objects
524 */
525#define IPCTL_FORWARDING 1 /* act as router */
526#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
527#define IPCTL_DEFTTL 3 /* default TTL */
528#ifdef notyet
529#define IPCTL_DEFMTU 4 /* default MTU */
530#endif
531#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
532#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
533#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
534#define IPCTL_SOURCEROUTE 8 /* may perform source routes */
535#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
536#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
537#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
538#define IPCTL_STATS 12 /* ipstat structure */
539#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
540#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
541#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
542#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
543#define IPCTL_MAXID 17
544
545#define IPCTL_NAMES { \
546 { 0, 0 }, \
547 { "forwarding", CTLTYPE_INT }, \
548 { "redirect", CTLTYPE_INT }, \
549 { "ttl", CTLTYPE_INT }, \
550 { "mtu", CTLTYPE_INT }, \
551 { "rtexpire", CTLTYPE_INT }, \
552 { "rtminexpire", CTLTYPE_INT }, \
553 { "rtmaxcache", CTLTYPE_INT }, \
554 { "sourceroute", CTLTYPE_INT }, \
555 { "directed-broadcast", CTLTYPE_INT }, \
556 { "intr-queue-maxlen", CTLTYPE_INT }, \
557 { "intr-queue-drops", CTLTYPE_INT }, \
558 { "stats", CTLTYPE_STRUCT }, \
559 { "accept_sourceroute", CTLTYPE_INT }, \
560 { "fastforwarding", CTLTYPE_INT }, \
561}
562
563#endif /* __BSD_VISIBLE */
564
565#ifdef _KERNEL
566
567struct ifnet; struct mbuf; /* forward declarations for Standard C */
568
569int in_broadcast(struct in_addr, struct ifnet *);
570int in_canforward(struct in_addr);
571int in_localaddr(struct in_addr);
572int in_localip(struct in_addr);
573char *inet_ntoa(struct in_addr); /* in libkern */
574char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
| 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
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/* Socket address, internet style. */
88struct sockaddr_in {
89 uint8_t sin_len;
90 sa_family_t sin_family;
91 in_port_t sin_port;
92 struct in_addr sin_addr;
93 char sin_zero[8];
94};
95
96#ifndef _KERNEL
97
98#ifndef _BYTEORDER_PROTOTYPED
99#define _BYTEORDER_PROTOTYPED
100__BEGIN_DECLS
101uint32_t htonl(uint32_t);
102uint16_t htons(uint16_t);
103uint32_t ntohl(uint32_t);
104uint16_t ntohs(uint16_t);
105__END_DECLS
106#endif
107
108#ifndef _BYTEORDER_FUNC_DEFINED
109#define _BYTEORDER_FUNC_DEFINED
110#define htonl(x) __htonl(x)
111#define htons(x) __htons(x)
112#define ntohl(x) __ntohl(x)
113#define ntohs(x) __ntohs(x)
114#endif
115
116#endif /* !_KERNEL */
117
118#if __POSIX_VISIBLE >= 200112
119#define IPPROTO_RAW 255 /* raw IP packet */
120#define INET_ADDRSTRLEN 16
121#endif
122
123#if __BSD_VISIBLE
124/*
125 * Constants and structures defined by the internet system,
126 * Per RFC 790, September 1981, and numerous additions.
127 */
128
129/*
130 * Protocols (RFC 1700)
131 */
132#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
133#define IPPROTO_IGMP 2 /* group mgmt protocol */
134#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
135#define IPPROTO_IPV4 4 /* IPv4 encapsulation */
136#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */
137#define IPPROTO_ST 7 /* Stream protocol II */
138#define IPPROTO_EGP 8 /* exterior gateway protocol */
139#define IPPROTO_PIGP 9 /* private interior gateway */
140#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */
141#define IPPROTO_NVPII 11 /* network voice protocol*/
142#define IPPROTO_PUP 12 /* pup */
143#define IPPROTO_ARGUS 13 /* Argus */
144#define IPPROTO_EMCON 14 /* EMCON */
145#define IPPROTO_XNET 15 /* Cross Net Debugger */
146#define IPPROTO_CHAOS 16 /* Chaos*/
147#define IPPROTO_MUX 18 /* Multiplexing */
148#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */
149#define IPPROTO_HMP 20 /* Host Monitoring */
150#define IPPROTO_PRM 21 /* Packet Radio Measurement */
151#define IPPROTO_IDP 22 /* xns idp */
152#define IPPROTO_TRUNK1 23 /* Trunk-1 */
153#define IPPROTO_TRUNK2 24 /* Trunk-2 */
154#define IPPROTO_LEAF1 25 /* Leaf-1 */
155#define IPPROTO_LEAF2 26 /* Leaf-2 */
156#define IPPROTO_RDP 27 /* Reliable Data */
157#define IPPROTO_IRTP 28 /* Reliable Transaction */
158#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
159#define IPPROTO_BLT 30 /* Bulk Data Transfer */
160#define IPPROTO_NSP 31 /* Network Services */
161#define IPPROTO_INP 32 /* Merit Internodal */
162#define IPPROTO_SEP 33 /* Sequential Exchange */
163#define IPPROTO_3PC 34 /* Third Party Connect */
164#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */
165#define IPPROTO_XTP 36 /* XTP */
166#define IPPROTO_DDP 37 /* Datagram Delivery */
167#define IPPROTO_CMTP 38 /* Control Message Transport */
168#define IPPROTO_TPXX 39 /* TP++ Transport */
169#define IPPROTO_IL 40 /* IL transport protocol */
170#define IPPROTO_IPV6 41 /* IP6 header */
171#define IPPROTO_SDRP 42 /* Source Demand Routing */
172#define IPPROTO_ROUTING 43 /* IP6 routing header */
173#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
174#define IPPROTO_IDRP 45 /* InterDomain Routing*/
175#define IPPROTO_RSVP 46 /* resource reservation */
176#define IPPROTO_GRE 47 /* General Routing Encap. */
177#define IPPROTO_MHRP 48 /* Mobile Host Routing */
178#define IPPROTO_BHA 49 /* BHA */
179#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
180#define IPPROTO_AH 51 /* IP6 Auth Header */
181#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */
182#define IPPROTO_SWIPE 53 /* IP with encryption */
183#define IPPROTO_NHRP 54 /* Next Hop Resolution */
184#define IPPROTO_MOBILE 55 /* IP Mobility */
185#define IPPROTO_TLSP 56 /* Transport Layer Security */
186#define IPPROTO_SKIP 57 /* SKIP */
187#define IPPROTO_ICMPV6 58 /* ICMP6 */
188#define IPPROTO_NONE 59 /* IP6 no next header */
189#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
190#define IPPROTO_AHIP 61 /* any host internal protocol */
191#define IPPROTO_CFTP 62 /* CFTP */
192#define IPPROTO_HELLO 63 /* "hello" routing protocol */
193#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */
194#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */
195#define IPPROTO_RVD 66 /* Remote Virtual Disk */
196#define IPPROTO_IPPC 67 /* Pluribus Packet Core */
197#define IPPROTO_ADFS 68 /* Any distributed FS */
198#define IPPROTO_SATMON 69 /* Satnet Monitoring */
199#define IPPROTO_VISA 70 /* VISA Protocol */
200#define IPPROTO_IPCV 71 /* Packet Core Utility */
201#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */
202#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */
203#define IPPROTO_WSN 74 /* Wang Span Network */
204#define IPPROTO_PVP 75 /* Packet Video Protocol */
205#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */
206#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */
207#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */
208#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
209#define IPPROTO_EON 80 /* ISO cnlp */
210#define IPPROTO_VMTP 81 /* VMTP */
211#define IPPROTO_SVMTP 82 /* Secure VMTP */
212#define IPPROTO_VINES 83 /* Banyon VINES */
213#define IPPROTO_TTP 84 /* TTP */
214#define IPPROTO_IGP 85 /* NSFNET-IGP */
215#define IPPROTO_DGP 86 /* dissimilar gateway prot. */
216#define IPPROTO_TCF 87 /* TCF */
217#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */
218#define IPPROTO_OSPFIGP 89 /* OSPFIGP */
219#define IPPROTO_SRPC 90 /* Strite RPC protocol */
220#define IPPROTO_LARP 91 /* Locus Address Resoloution */
221#define IPPROTO_MTP 92 /* Multicast Transport */
222#define IPPROTO_AX25 93 /* AX.25 Frames */
223#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */
224#define IPPROTO_MICP 95 /* Mobile Int.ing control */
225#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */
226#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */
227#define IPPROTO_ENCAP 98 /* encapsulation header */
228#define IPPROTO_APES 99 /* any private encr. scheme */
229#define IPPROTO_GMTP 100 /* GMTP*/
230#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */
231/* 101-254: Partly Unassigned */
232#define IPPROTO_PIM 103 /* Protocol Independent Mcast */
233#define IPPROTO_CARP 112 /* CARP */
234#define IPPROTO_PGM 113 /* PGM */
235#define IPPROTO_PFSYNC 240 /* PFSYNC */
236/* 255: Reserved */
237/* BSD Private, local use, namespace incursion, no longer used */
238#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */
239#define IPPROTO_MAX 256
240
241/* last return value of *_input(), meaning "all job for this pkt is done". */
242#define IPPROTO_DONE 257
243
244/* Only used internally, so can be outside the range of valid IP protocols. */
245#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */
246
247/*
248 * Defined to avoid confusion. The master value is defined by
249 * PROTO_SPACER in sys/protosw.h.
250 */
251#define IPPROTO_SPACER 32767 /* spacer for loadable protos */
252
253/*
254 * Local port number conventions:
255 *
256 * When a user does a bind(2) or connect(2) with a port number of zero,
257 * a non-conflicting local port address is chosen.
258 * The default range is IPPORT_HIFIRSTAUTO through
259 * IPPORT_HILASTAUTO, although that is settable by sysctl.
260 *
261 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
262 * default assignment range.
263 *
264 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
265 *
266 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
267 * into the "high" range. These are reserved for client outbound connections
268 * which do not want to be filtered by any firewalls. Note that by default
269 * this is the same as IP_PORTRANGE_DEFAULT.
270 *
271 * The value IP_PORTRANGE_LOW changes the range to the "low" are
272 * that is (by convention) restricted to privileged processes. This
273 * convention is based on "vouchsafe" principles only. It is only secure
274 * if you trust the remote host to restrict these ports.
275 *
276 * The default range of ports and the high range can be changed by
277 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto)
278 *
279 * Changing those values has bad security implications if you are
280 * using a stateless firewall that is allowing packets outside of that
281 * range in order to allow transparent outgoing connections.
282 *
283 * Such a firewall configuration will generally depend on the use of these
284 * default values. If you change them, you may find your Security
285 * Administrator looking for you with a heavy object.
286 *
287 * For a slightly more orthodox text view on this:
288 *
289 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
290 *
291 * port numbers are divided into three ranges:
292 *
293 * 0 - 1023 Well Known Ports
294 * 1024 - 49151 Registered Ports
295 * 49152 - 65535 Dynamic and/or Private Ports
296 *
297 */
298
299/*
300 * Ports < IPPORT_RESERVED are reserved for
301 * privileged processes (e.g. root). (IP_PORTRANGE_LOW)
302 */
303#define IPPORT_RESERVED 1024
304
305/*
306 * Default local port range, used by both IP_PORTRANGE_DEFAULT
307 * and IP_PORTRANGE_HIGH.
308 */
309#define IPPORT_HIFIRSTAUTO 49152
310#define IPPORT_HILASTAUTO 65535
311
312/*
313 * Scanning for a free reserved port return a value below IPPORT_RESERVED,
314 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was
315 * 512, but that conflicts with some well-known-services that firewalls may
316 * have a fit if we use.
317 */
318#define IPPORT_RESERVEDSTART 600
319
320#define IPPORT_MAX 65535
321
322/*
323 * Definitions of bits in internet address integers.
324 * On subnets, the decomposition of addresses to host and net parts
325 * is done according to subnet mask, not the masks here.
326 */
327#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0)
328#define IN_CLASSA_NET 0xff000000
329#define IN_CLASSA_NSHIFT 24
330#define IN_CLASSA_HOST 0x00ffffff
331#define IN_CLASSA_MAX 128
332
333#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000)
334#define IN_CLASSB_NET 0xffff0000
335#define IN_CLASSB_NSHIFT 16
336#define IN_CLASSB_HOST 0x0000ffff
337#define IN_CLASSB_MAX 65536
338
339#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
340#define IN_CLASSC_NET 0xffffff00
341#define IN_CLASSC_NSHIFT 8
342#define IN_CLASSC_HOST 0x000000ff
343
344#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000)
345#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
346#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
347#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
348#define IN_MULTICAST(i) IN_CLASSD(i)
349
350#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
351#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
352
353#define INADDR_LOOPBACK (u_int32_t)0x7f000001
354#ifndef _KERNEL
355#define INADDR_NONE 0xffffffff /* -1 return */
356#endif
357
358#define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */
359#define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */
360#define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */
361#define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */
362#define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */
363#define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */
364#define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */
365
366#define IN_LOOPBACKNET 127 /* official! */
367
368/*
369 * Options for use with [gs]etsockopt at the IP level.
370 * First word of comment is data type; bool is stored in int.
371 */
372#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
373#define IP_HDRINCL 2 /* int; header is included with data */
374#define IP_TOS 3 /* int; IP type of service and preced. */
375#define IP_TTL 4 /* int; IP time to live */
376#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
377#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
378#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
379#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */
380#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
381#define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */
382#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
383#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
384#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
385#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
386#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */
387#define IP_RSVP_ON 15 /* enable RSVP in kernel */
388#define IP_RSVP_OFF 16 /* disable RSVP in kernel */
389#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */
390#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */
391#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
392#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
393/* for IPSEC */
394#define IP_IPSEC_POLICY 21 /* int; set/get security policy */
395#define IP_FAITH 22 /* bool; accept FAITH'ed connections */
396
397#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */
398
399#define IP_FW_TABLE_ADD 40 /* add entry */
400#define IP_FW_TABLE_DEL 41 /* delete entry */
401#define IP_FW_TABLE_FLUSH 42 /* flush table */
402#define IP_FW_TABLE_GETSIZE 43 /* get table size */
403#define IP_FW_TABLE_LIST 44 /* list table contents */
404
405#define IP_FW_ADD 50 /* add a firewall rule to chain */
406#define IP_FW_DEL 51 /* delete a firewall rule from chain */
407#define IP_FW_FLUSH 52 /* flush firewall rule chain */
408#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */
409#define IP_FW_GET 54 /* get entire firewall rule chain */
410#define IP_FW_RESETLOG 55 /* reset logging counters */
411
412#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */
413#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */
414#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */
415#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */
416
417#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */
418#define IP_MINTTL 66 /* minimum TTL for packet or drop */
419
420/*
421 * Defaults and limits for options
422 */
423#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
424#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
425#define IP_MAX_MEMBERSHIPS 20 /* per socket */
426
427/*
428 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
429 */
430struct ip_mreq {
431 struct in_addr imr_multiaddr; /* IP multicast address of group */
432 struct in_addr imr_interface; /* local IP address of interface */
433};
434
435/*
436 * Argument for IP_PORTRANGE:
437 * - which range to search when port is unspecified at bind() or connect()
438 */
439#define IP_PORTRANGE_DEFAULT 0 /* default range */
440#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
441#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
442
443/*
444 * Definitions for inet sysctl operations.
445 *
446 * Third level is protocol number.
447 * Fourth level is desired variable within that protocol.
448 */
449#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */
450
451#define CTL_IPPROTO_NAMES { \
452 { "ip", CTLTYPE_NODE }, \
453 { "icmp", CTLTYPE_NODE }, \
454 { "igmp", CTLTYPE_NODE }, \
455 { "ggp", CTLTYPE_NODE }, \
456 { 0, 0 }, \
457 { 0, 0 }, \
458 { "tcp", CTLTYPE_NODE }, \
459 { 0, 0 }, \
460 { "egp", CTLTYPE_NODE }, \
461 { 0, 0 }, \
462 { 0, 0 }, \
463 { 0, 0 }, \
464 { "pup", CTLTYPE_NODE }, \
465 { 0, 0 }, \
466 { 0, 0 }, \
467 { 0, 0 }, \
468 { 0, 0 }, \
469 { "udp", CTLTYPE_NODE }, \
470 { 0, 0 }, \
471 { 0, 0 }, \
472 { 0, 0 }, \
473 { 0, 0 }, \
474 { "idp", CTLTYPE_NODE }, \
475 { 0, 0 }, \
476 { 0, 0 }, \
477 { 0, 0 }, \
478 { 0, 0 }, \
479 { 0, 0 }, \
480 { 0, 0 }, \
481 { 0, 0 }, \
482 { 0, 0 }, \
483 { 0, 0 }, \
484 { 0, 0 }, \
485 { 0, 0 }, \
486 { 0, 0 }, \
487 { 0, 0 }, \
488 { 0, 0 }, \
489 { 0, 0 }, \
490 { 0, 0 }, \
491 { 0, 0 }, \
492 { 0, 0 }, \
493 { 0, 0 }, \
494 { 0, 0 }, \
495 { 0, 0 }, \
496 { 0, 0 }, \
497 { 0, 0 }, \
498 { 0, 0 }, \
499 { 0, 0 }, \
500 { 0, 0 }, \
501 { 0, 0 }, \
502 { 0, 0 }, \
503 { "ipsec", CTLTYPE_NODE }, \
504 { 0, 0 }, \
505 { 0, 0 }, \
506 { 0, 0 }, \
507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
508 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
509 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
510 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
511 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
512 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
513 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
514 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
516 { 0, 0 }, \
517 { 0, 0 }, \
518 { 0, 0 }, \
519 { "pim", CTLTYPE_NODE }, \
520}
521
522/*
523 * Names for IP sysctl objects
524 */
525#define IPCTL_FORWARDING 1 /* act as router */
526#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
527#define IPCTL_DEFTTL 3 /* default TTL */
528#ifdef notyet
529#define IPCTL_DEFMTU 4 /* default MTU */
530#endif
531#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */
532#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */
533#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */
534#define IPCTL_SOURCEROUTE 8 /* may perform source routes */
535#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */
536#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */
537#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */
538#define IPCTL_STATS 12 /* ipstat structure */
539#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */
540#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */
541#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */
542#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */
543#define IPCTL_MAXID 17
544
545#define IPCTL_NAMES { \
546 { 0, 0 }, \
547 { "forwarding", CTLTYPE_INT }, \
548 { "redirect", CTLTYPE_INT }, \
549 { "ttl", CTLTYPE_INT }, \
550 { "mtu", CTLTYPE_INT }, \
551 { "rtexpire", CTLTYPE_INT }, \
552 { "rtminexpire", CTLTYPE_INT }, \
553 { "rtmaxcache", CTLTYPE_INT }, \
554 { "sourceroute", CTLTYPE_INT }, \
555 { "directed-broadcast", CTLTYPE_INT }, \
556 { "intr-queue-maxlen", CTLTYPE_INT }, \
557 { "intr-queue-drops", CTLTYPE_INT }, \
558 { "stats", CTLTYPE_STRUCT }, \
559 { "accept_sourceroute", CTLTYPE_INT }, \
560 { "fastforwarding", CTLTYPE_INT }, \
561}
562
563#endif /* __BSD_VISIBLE */
564
565#ifdef _KERNEL
566
567struct ifnet; struct mbuf; /* forward declarations for Standard C */
568
569int in_broadcast(struct in_addr, struct ifnet *);
570int in_canforward(struct in_addr);
571int in_localaddr(struct in_addr);
572int in_localip(struct in_addr);
573char *inet_ntoa(struct in_addr); /* in libkern */
574char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
|