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 * $FreeBSD$ 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 /* Socket address, internet style. */ 88 struct 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 101 uint32_t htonl(uint32_t); 102 uint16_t htons(uint16_t); 103 uint32_t ntohl(uint32_t); 104 uint16_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 #define IPPROTO_SCTP 132 /* SCTP */ 232 /* 101-254: Partly Unassigned */ 233 #define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 234 #define IPPROTO_CARP 112 /* CARP */ 235 #define IPPROTO_PGM 113 /* PGM */ 236 #define IPPROTO_PFSYNC 240 /* PFSYNC */ 237 /* 255: Reserved */ 238 /* BSD Private, local use, namespace incursion, no longer used */ 239 #define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ 240 #define IPPROTO_MAX 256 241 242 /* last return value of *_input(), meaning "all job for this pkt is done". */ 243 #define IPPROTO_DONE 257 244 245 /* Only used internally, so can be outside the range of valid IP protocols. */ 246 #define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ 247 248 /* 249 * Defined to avoid confusion. The master value is defined by 250 * PROTO_SPACER in sys/protosw.h. 251 */ 252 #define IPPROTO_SPACER 32767 /* spacer for loadable protos */ 253 254 /* 255 * Local port number conventions: 256 * 257 * When a user does a bind(2) or connect(2) with a port number of zero, 258 * a non-conflicting local port address is chosen. 259 * The default range is IPPORT_HIFIRSTAUTO through 260 * IPPORT_HILASTAUTO, although that is settable by sysctl. 261 * 262 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 263 * default assignment range. 264 * 265 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 266 * 267 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 268 * into the "high" range. These are reserved for client outbound connections 269 * which do not want to be filtered by any firewalls. Note that by default 270 * this is the same as IP_PORTRANGE_DEFAULT. 271 * 272 * The value IP_PORTRANGE_LOW changes the range to the "low" are 273 * that is (by convention) restricted to privileged processes. This 274 * convention is based on "vouchsafe" principles only. It is only secure 275 * if you trust the remote host to restrict these ports. 276 * 277 * The default range of ports and the high range can be changed by 278 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 279 * 280 * Changing those values has bad security implications if you are 281 * using a stateless firewall that is allowing packets outside of that 282 * range in order to allow transparent outgoing connections. 283 * 284 * Such a firewall configuration will generally depend on the use of these 285 * default values. If you change them, you may find your Security 286 * Administrator looking for you with a heavy object. 287 * 288 * For a slightly more orthodox text view on this: 289 * 290 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 291 * 292 * port numbers are divided into three ranges: 293 * 294 * 0 - 1023 Well Known Ports 295 * 1024 - 49151 Registered Ports 296 * 49152 - 65535 Dynamic and/or Private Ports 297 * 298 */ 299 300 /* 301 * Ports < IPPORT_RESERVED are reserved for 302 * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 303 */ 304 #define IPPORT_RESERVED 1024 305 306 /* 307 * Default local port range, used by both IP_PORTRANGE_DEFAULT 308 * and IP_PORTRANGE_HIGH. 309 */ 310 #define IPPORT_HIFIRSTAUTO 49152 311 #define IPPORT_HILASTAUTO 65535 312 313 /* 314 * Scanning for a free reserved port return a value below IPPORT_RESERVED, 315 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 316 * 512, but that conflicts with some well-known-services that firewalls may 317 * have a fit if we use. 318 */ 319 #define IPPORT_RESERVEDSTART 600 320 321 #define IPPORT_MAX 65535 322 323 /* 324 * Definitions of bits in internet address integers. 325 * On subnets, the decomposition of addresses to host and net parts 326 * is done according to subnet mask, not the masks here. 327 */ 328 #define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0) 329 #define IN_CLASSA_NET 0xff000000 330 #define IN_CLASSA_NSHIFT 24 331 #define IN_CLASSA_HOST 0x00ffffff 332 #define IN_CLASSA_MAX 128 333 334 #define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000) 335 #define IN_CLASSB_NET 0xffff0000 336 #define IN_CLASSB_NSHIFT 16 337 #define IN_CLASSB_HOST 0x0000ffff 338 #define IN_CLASSB_MAX 65536 339 340 #define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000) 341 #define IN_CLASSC_NET 0xffffff00 342 #define IN_CLASSC_NSHIFT 8 343 #define IN_CLASSC_HOST 0x000000ff 344 345 #define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000) 346 #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 347 #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 348 #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 349 #define IN_MULTICAST(i) IN_CLASSD(i) 350 351 #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 352 #define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 353 354 #define IN_LINKLOCAL(i) (((u_int32_t)(i) & 0xffff0000) == 0xa9fe0000) 355 356 #define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \ 357 (((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \ 358 (((u_int32_t)(i) & 0xffff0000) == 0xc0a80000)) 359 360 #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000) 361 362 #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) 363 364 #define INADDR_LOOPBACK (u_int32_t)0x7f000001 365 #ifndef _KERNEL 366 #define INADDR_NONE 0xffffffff /* -1 return */ 367 #endif 368 369 #define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */ 370 #define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */ 371 #define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */ 372 #define INADDR_ALLRPTS_GROUP (u_int32_t)0xe0000016 /* 224.0.0.22, IGMPv3 */ 373 #define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */ 374 #define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */ 375 #define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */ 376 #define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */ 377 378 #define IN_LOOPBACKNET 127 /* official! */ 379 380 /* 381 * Options for use with [gs]etsockopt at the IP level. 382 * First word of comment is data type; bool is stored in int. 383 */ 384 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 385 #define IP_HDRINCL 2 /* int; header is included with data */ 386 #define IP_TOS 3 /* int; IP type of service and preced. */ 387 #define IP_TTL 4 /* int; IP time to live */ 388 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 389 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 390 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 391 #define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ 392 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 393 #define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */ 394 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 395 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 396 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 397 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 398 #define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 399 #define IP_RSVP_ON 15 /* enable RSVP in kernel */ 400 #define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 401 #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 402 #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 403 #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 404 #define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 405 /* for IPSEC */ 406 #define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 407 #define IP_FAITH 22 /* bool; accept FAITH'ed connections */ 408 409 #define IP_ONESBCAST 23 /* bool: send all-ones broadcast */ 410 411 #define IP_FW_TABLE_ADD 40 /* add entry */ 412 #define IP_FW_TABLE_DEL 41 /* delete entry */ 413 #define IP_FW_TABLE_FLUSH 42 /* flush table */ 414 #define IP_FW_TABLE_GETSIZE 43 /* get table size */ 415 #define IP_FW_TABLE_LIST 44 /* list table contents */ 416 417 #define IP_FW_ADD 50 /* add a firewall rule to chain */ 418 #define IP_FW_DEL 51 /* delete a firewall rule from chain */ 419 #define IP_FW_FLUSH 52 /* flush firewall rule chain */ 420 #define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ 421 #define IP_FW_GET 54 /* get entire firewall rule chain */ 422 #define IP_FW_RESETLOG 55 /* reset logging counters */ 423 424 #define IP_FW_NAT_CFG 56 /* add/config a nat rule */ 425 #define IP_FW_NAT_DEL 57 /* delete a nat rule */ 426 #define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */ 427 #define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */ 428 429 #define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 430 #define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 431 #define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 432 #define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 433 434 #define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ 435 #define IP_MINTTL 66 /* minimum TTL for packet or drop */ 436 #define IP_DONTFRAG 67 /* don't fragment packet */ 437 438 /* 439 * Defaults and limits for options 440 */ 441 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 442 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 443 444 /* 445 * The imo_membership vector for each socket is now dynamically allocated at 446 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 447 * according to a power-of-two increment. 448 */ 449 #define IP_MIN_MEMBERSHIPS 31 450 #define IP_MAX_MEMBERSHIPS 4095 451 452 /* 453 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 454 */ 455 struct ip_mreq { 456 struct in_addr imr_multiaddr; /* IP multicast address of group */ 457 struct in_addr imr_interface; /* local IP address of interface */ 458 }; 459 460 /* 461 * Argument for IP_PORTRANGE: 462 * - which range to search when port is unspecified at bind() or connect() 463 */ 464 #define IP_PORTRANGE_DEFAULT 0 /* default range */ 465 #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 466 #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 467 468 /* 469 * Definitions for inet sysctl operations. 470 * 471 * Third level is protocol number. 472 * Fourth level is desired variable within that protocol. 473 */ 474 #define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ 475 476 #define CTL_IPPROTO_NAMES { \ 477 { "ip", CTLTYPE_NODE }, \ 478 { "icmp", CTLTYPE_NODE }, \ 479 { "igmp", CTLTYPE_NODE }, \ 480 { "ggp", CTLTYPE_NODE }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { "tcp", CTLTYPE_NODE }, \ 484 { 0, 0 }, \ 485 { "egp", CTLTYPE_NODE }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, \ 489 { "pup", CTLTYPE_NODE }, \ 490 { 0, 0 }, \ 491 { 0, 0 }, \ 492 { 0, 0 }, \ 493 { 0, 0 }, \ 494 { "udp", CTLTYPE_NODE }, \ 495 { 0, 0 }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { "idp", CTLTYPE_NODE }, \ 500 { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, \ 511 { 0, 0 }, \ 512 { 0, 0 }, \ 513 { 0, 0 }, \ 514 { 0, 0 }, \ 515 { 0, 0 }, \ 516 { 0, 0 }, \ 517 { 0, 0 }, \ 518 { 0, 0 }, \ 519 { 0, 0 }, \ 520 { 0, 0 }, \ 521 { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { 0, 0 }, \ 525 { 0, 0 }, \ 526 { 0, 0 }, \ 527 { 0, 0 }, \ 528 { "ipsec", CTLTYPE_NODE }, \ 529 { 0, 0 }, \ 530 { 0, 0 }, \ 531 { 0, 0 }, \ 532 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 533 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 534 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 535 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 536 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 537 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 538 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 539 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 540 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 541 { 0, 0 }, \ 542 { 0, 0 }, \ 543 { 0, 0 }, \ 544 { "pim", CTLTYPE_NODE }, \ 545 } 546 547 /* 548 * Names for IP sysctl objects 549 */ 550 #define IPCTL_FORWARDING 1 /* act as router */ 551 #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 552 #define IPCTL_DEFTTL 3 /* default TTL */ 553 #ifdef notyet 554 #define IPCTL_DEFMTU 4 /* default MTU */ 555 #endif 556 #define IPCTL_RTEXPIRE 5 /* cloned route expiration time */ 557 #define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */ 558 #define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */ 559 #define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 560 #define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 561 #define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 562 #define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 563 #define IPCTL_STATS 12 /* ipstat structure */ 564 #define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 565 #define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 566 #define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */ 567 #define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 568 #define IPCTL_MAXID 17 569 570 #define IPCTL_NAMES { \ 571 { 0, 0 }, \ 572 { "forwarding", CTLTYPE_INT }, \ 573 { "redirect", CTLTYPE_INT }, \ 574 { "ttl", CTLTYPE_INT }, \ 575 { "mtu", CTLTYPE_INT }, \ 576 { "rtexpire", CTLTYPE_INT }, \ 577 { "rtminexpire", CTLTYPE_INT }, \ 578 { "rtmaxcache", CTLTYPE_INT }, \ 579 { "sourceroute", CTLTYPE_INT }, \ 580 { "directed-broadcast", CTLTYPE_INT }, \ 581 { "intr-queue-maxlen", CTLTYPE_INT }, \ 582 { "intr-queue-drops", CTLTYPE_INT }, \ 583 { "stats", CTLTYPE_STRUCT }, \ 584 { "accept_sourceroute", CTLTYPE_INT }, \ 585 { "fastforwarding", CTLTYPE_INT }, \ 586 } 587 588 #endif /* __BSD_VISIBLE */ 589 590 #ifdef _KERNEL 591 592 struct ifnet; struct mbuf; /* forward declarations for Standard C */ 593 594 int in_broadcast(struct in_addr, struct ifnet *); 595 int in_canforward(struct in_addr); 596 int in_localaddr(struct in_addr); 597 int in_localip(struct in_addr); 598 char *inet_ntoa(struct in_addr); /* in libkern */ 599 char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ 600 void in_ifdetach(struct ifnet *); 601 602 #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 603 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 604 605 #define satosin(sa) ((struct sockaddr_in *)(sa)) 606 #define sintosa(sin) ((struct sockaddr *)(sin)) 607 #define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 608 609 #endif /* _KERNEL */ 610 611 /* INET6 stuff */ 612 #if __POSIX_VISIBLE >= 200112 613 #define __KAME_NETINET_IN_H_INCLUDED_ 614 #include <netinet6/in6.h> 615 #undef __KAME_NETINET_IN_H_INCLUDED_ 616 #endif 617 618 #endif /* !_NETINET_IN_H_*/ 619