| 1 | /* $NetBSD: in.h,v 1.99 2016/08/01 03:15:30 ozaki-r Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1982, 1986, 1990, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | * @(#)in.h 8.3 (Berkeley) 1/3/94 |
| 32 | */ |
| 33 | |
| 34 | /* |
| 35 | * Constants and structures defined by the internet system, |
| 36 | * Per RFC 790, September 1981, and numerous additions. |
| 37 | */ |
| 38 | |
| 39 | #ifndef _NETINET_IN_H_ |
| 40 | #define _NETINET_IN_H_ |
| 41 | |
| 42 | #include <sys/featuretest.h> |
| 43 | #include <machine/int_types.h> |
| 44 | |
| 45 | #ifndef uint8_t |
| 46 | typedef __uint8_t uint8_t; |
| 47 | #define uint8_t __uint8_t |
| 48 | #endif |
| 49 | |
| 50 | #ifndef uint32_t |
| 51 | typedef __uint32_t uint32_t; |
| 52 | #define uint32_t __uint32_t |
| 53 | #endif |
| 54 | |
| 55 | #include <sys/ansi.h> |
| 56 | |
| 57 | #ifndef in_addr_t |
| 58 | typedef __in_addr_t in_addr_t; |
| 59 | #define in_addr_t __in_addr_t |
| 60 | #endif |
| 61 | |
| 62 | #ifndef in_port_t |
| 63 | typedef __in_port_t in_port_t; |
| 64 | #define in_port_t __in_port_t |
| 65 | #endif |
| 66 | |
| 67 | #ifndef sa_family_t |
| 68 | typedef __sa_family_t sa_family_t; |
| 69 | #define sa_family_t __sa_family_t |
| 70 | #endif |
| 71 | |
| 72 | /* |
| 73 | * Protocols |
| 74 | */ |
| 75 | #define IPPROTO_IP 0 /* dummy for IP */ |
| 76 | #define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ |
| 77 | #define IPPROTO_ICMP 1 /* control message protocol */ |
| 78 | #define IPPROTO_IGMP 2 /* group mgmt protocol */ |
| 79 | #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ |
| 80 | #define IPPROTO_IPV4 4 /* IP header */ |
| 81 | #define IPPROTO_IPIP 4 /* IP inside IP */ |
| 82 | #define IPPROTO_TCP 6 /* tcp */ |
| 83 | #define IPPROTO_EGP 8 /* exterior gateway protocol */ |
| 84 | #define IPPROTO_PUP 12 /* pup */ |
| 85 | #define IPPROTO_UDP 17 /* user datagram protocol */ |
| 86 | #define IPPROTO_IDP 22 /* xns idp */ |
| 87 | #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ |
| 88 | #define IPPROTO_DCCP 33 /* DCCP */ |
| 89 | #define IPPROTO_IPV6 41 /* IP6 header */ |
| 90 | #define IPPROTO_ROUTING 43 /* IP6 routing header */ |
| 91 | #define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ |
| 92 | #define IPPROTO_RSVP 46 /* resource reservation */ |
| 93 | #define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */ |
| 94 | #define IPPROTO_ESP 50 /* encap. security payload */ |
| 95 | #define IPPROTO_AH 51 /* authentication header */ |
| 96 | #define IPPROTO_MOBILE 55 /* IP Mobility RFC 2004 */ |
| 97 | #define IPPROTO_IPV6_ICMP 58 /* IPv6 ICMP */ |
| 98 | #define IPPROTO_ICMPV6 58 /* ICMP6 */ |
| 99 | #define IPPROTO_NONE 59 /* IP6 no next header */ |
| 100 | #define IPPROTO_DSTOPTS 60 /* IP6 destination option */ |
| 101 | #define IPPROTO_EON 80 /* ISO cnlp */ |
| 102 | #define IPPROTO_ETHERIP 97 /* Ethernet-in-IP */ |
| 103 | #define IPPROTO_ENCAP 98 /* encapsulation header */ |
| 104 | #define IPPROTO_PIM 103 /* Protocol indep. multicast */ |
| 105 | #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */ |
| 106 | #define IPPROTO_VRRP 112 /* VRRP RFC 2338 */ |
| 107 | #define IPPROTO_CARP 112 /* Common Address Resolution Protocol */ |
| 108 | #define IPPROTO_SCTP 132 /* SCTP */ |
| 109 | #define IPPROTO_PFSYNC 240 /* PFSYNC */ |
| 110 | #define IPPROTO_RAW 255 /* raw IP packet */ |
| 111 | #define IPPROTO_MAX 256 |
| 112 | |
| 113 | /* last return value of *_input(), meaning "all job for this pkt is done". */ |
| 114 | #define IPPROTO_DONE 257 |
| 115 | |
| 116 | /* sysctl placeholder for (FAST_)IPSEC */ |
| 117 | #define CTL_IPPROTO_IPSEC 258 |
| 118 | |
| 119 | |
| 120 | /* |
| 121 | * Local port number conventions: |
| 122 | * |
| 123 | * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), |
| 124 | * unless a kernel is compiled with IPNOPRIVPORTS defined. |
| 125 | * |
| 126 | * When a user does a bind(2) or connect(2) with a port number of zero, |
| 127 | * a non-conflicting local port address is chosen. |
| 128 | * |
| 129 | * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although |
| 130 | * that is settable by sysctl(3); net.inet.ip.anonportmin and |
| 131 | * net.inet.ip.anonportmax respectively. |
| 132 | * |
| 133 | * A user may set the IPPROTO_IP option IP_PORTRANGE to change this |
| 134 | * default assignment range. |
| 135 | * |
| 136 | * The value IP_PORTRANGE_DEFAULT causes the default behavior. |
| 137 | * |
| 138 | * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, |
| 139 | * and exists only for FreeBSD compatibility purposes. |
| 140 | * |
| 141 | * The value IP_PORTRANGE_LOW changes the range to the "low" are |
| 142 | * that is (by convention) restricted to privileged processes. |
| 143 | * This convention is based on "vouchsafe" principles only. |
| 144 | * It is only secure if you trust the remote host to restrict these ports. |
| 145 | * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. |
| 146 | */ |
| 147 | |
| 148 | #define IPPORT_RESERVED 1024 |
| 149 | #define IPPORT_ANONMIN 49152 |
| 150 | #define IPPORT_ANONMAX 65535 |
| 151 | #define IPPORT_RESERVEDMIN 600 |
| 152 | #define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1) |
| 153 | |
| 154 | /* |
| 155 | * Internet address (a structure for historical reasons) |
| 156 | */ |
| 157 | struct in_addr { |
| 158 | in_addr_t s_addr; |
| 159 | } __packed; |
| 160 | |
| 161 | /* |
| 162 | * Definitions of bits in internet address integers. |
| 163 | * On subnets, the decomposition of addresses to host and net parts |
| 164 | * is done according to subnet mask, not the masks here. |
| 165 | * |
| 166 | * By byte-swapping the constants, we avoid ever having to byte-swap IP |
| 167 | * addresses inside the kernel. Unfortunately, user-level programs rely |
| 168 | * on these macros not doing byte-swapping. |
| 169 | */ |
| 170 | #ifdef _KERNEL |
| 171 | #define __IPADDR(x) ((uint32_t) htonl((uint32_t)(x))) |
| 172 | #else |
| 173 | #define __IPADDR(x) ((uint32_t)(x)) |
| 174 | #endif |
| 175 | |
| 176 | #define IN_CLASSA(i) (((uint32_t)(i) & __IPADDR(0x80000000)) == \ |
| 177 | __IPADDR(0x00000000)) |
| 178 | #define IN_CLASSA_NET __IPADDR(0xff000000) |
| 179 | #define IN_CLASSA_NSHIFT 24 |
| 180 | #define IN_CLASSA_HOST __IPADDR(0x00ffffff) |
| 181 | #define IN_CLASSA_MAX 128 |
| 182 | |
| 183 | #define IN_CLASSB(i) (((uint32_t)(i) & __IPADDR(0xc0000000)) == \ |
| 184 | __IPADDR(0x80000000)) |
| 185 | #define IN_CLASSB_NET __IPADDR(0xffff0000) |
| 186 | #define IN_CLASSB_NSHIFT 16 |
| 187 | #define IN_CLASSB_HOST __IPADDR(0x0000ffff) |
| 188 | #define IN_CLASSB_MAX 65536 |
| 189 | |
| 190 | #define IN_CLASSC(i) (((uint32_t)(i) & __IPADDR(0xe0000000)) == \ |
| 191 | __IPADDR(0xc0000000)) |
| 192 | #define IN_CLASSC_NET __IPADDR(0xffffff00) |
| 193 | #define IN_CLASSC_NSHIFT 8 |
| 194 | #define IN_CLASSC_HOST __IPADDR(0x000000ff) |
| 195 | |
| 196 | #define IN_CLASSD(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \ |
| 197 | __IPADDR(0xe0000000)) |
| 198 | /* These ones aren't really net and host fields, but routing needn't know. */ |
| 199 | #define IN_CLASSD_NET __IPADDR(0xf0000000) |
| 200 | #define IN_CLASSD_NSHIFT 28 |
| 201 | #define IN_CLASSD_HOST __IPADDR(0x0fffffff) |
| 202 | #define IN_MULTICAST(i) IN_CLASSD(i) |
| 203 | |
| 204 | #define IN_EXPERIMENTAL(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \ |
| 205 | __IPADDR(0xf0000000)) |
| 206 | #define IN_BADCLASS(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \ |
| 207 | __IPADDR(0xf0000000)) |
| 208 | |
| 209 | #define IN_LINKLOCAL(i) (((uint32_t)(i) & __IPADDR(0xffff0000)) == \ |
| 210 | __IPADDR(0xa9fe0000)) |
| 211 | |
| 212 | #define IN_PRIVATE(i) ((((uint32_t)(i) & __IPADDR(0xff000000)) == \ |
| 213 | __IPADDR(0x0a000000)) || \ |
| 214 | (((uint32_t)(i) & __IPADDR(0xfff00000)) == \ |
| 215 | __IPADDR(0xac100000)) || \ |
| 216 | (((uint32_t)(i) & __IPADDR(0xffff0000)) == \ |
| 217 | __IPADDR(0xc0a80000))) |
| 218 | |
| 219 | #define IN_LOCAL_GROUP(i) (((uint32_t)(i) & __IPADDR(0xffffff00)) == \ |
| 220 | __IPADDR(0xe0000000)) |
| 221 | |
| 222 | #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) |
| 223 | |
| 224 | #define INADDR_ANY __IPADDR(0x00000000) |
| 225 | #define INADDR_LOOPBACK __IPADDR(0x7f000001) |
| 226 | #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ |
| 227 | #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */ |
| 228 | |
| 229 | #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ |
| 230 | #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ |
| 231 | #define INADDR_ALLRTRS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ |
| 232 | #define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */ |
| 233 | #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ |
| 234 | |
| 235 | #define IN_LOOPBACKNET 127 /* official! */ |
| 236 | |
| 237 | /* |
| 238 | * Socket address, internet style. |
| 239 | */ |
| 240 | struct sockaddr_in { |
| 241 | uint8_t sin_len; |
| 242 | sa_family_t sin_family; |
| 243 | in_port_t sin_port; |
| 244 | struct in_addr sin_addr; |
| 245 | __int8_t sin_zero[8]; |
| 246 | }; |
| 247 | |
| 248 | #define INET_ADDRSTRLEN 16 |
| 249 | |
| 250 | /* |
| 251 | * Structure used to describe IP options. |
| 252 | * Used to store options internally, to pass them to a process, |
| 253 | * or to restore options retrieved earlier. |
| 254 | * The ip_dst is used for the first-hop gateway when using a source route |
| 255 | * (this gets put into the header proper). |
| 256 | */ |
| 257 | struct ip_opts { |
| 258 | struct in_addr ip_dst; /* first hop, 0 w/o src rt */ |
| 259 | #if defined(__cplusplus) |
| 260 | __int8_t Ip_opts[40]; /* actually variable in size */ |
| 261 | #else |
| 262 | __int8_t ip_opts[40]; /* actually variable in size */ |
| 263 | #endif |
| 264 | }; |
| 265 | |
| 266 | /* |
| 267 | * Options for use with [gs]etsockopt at the IP level. |
| 268 | * First word of comment is data type; bool is stored in int. |
| 269 | */ |
| 270 | #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ |
| 271 | #define IP_HDRINCL 2 /* int; header is included with data */ |
| 272 | #define IP_TOS 3 /* int; IP type of service and preced. */ |
| 273 | #define IP_TTL 4 /* int; IP time to live */ |
| 274 | #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ |
| 275 | #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ |
| 276 | #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ |
| 277 | #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ |
| 278 | #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ |
| 279 | #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ |
| 280 | #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ |
| 281 | /* The add and drop membership option numbers need to match with the v6 ones */ |
| 282 | #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ |
| 283 | #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ |
| 284 | #define IP_PORTALGO 18 /* int; port selection algo (rfc6056) */ |
| 285 | #define IP_PORTRANGE 19 /* int; range to use for ephemeral port */ |
| 286 | #define IP_RECVIF 20 /* bool; receive reception if w/dgram */ |
| 287 | #define IP_ERRORMTU 21 /* int; get MTU of last xmit = EMSGSIZE */ |
| 288 | #define IP_IPSEC_POLICY 22 /* struct; get/set security policy */ |
| 289 | #define IP_RECVTTL 23 /* bool; receive IP TTL w/dgram */ |
| 290 | #define IP_MINTTL 24 /* minimum TTL for packet or drop */ |
| 291 | #define IP_PKTINFO 25 /* int; send interface and src addr */ |
| 292 | #define IP_RECVPKTINFO 26 /* int; send interface and dst addr */ |
| 293 | |
| 294 | /* |
| 295 | * Information sent in the control message of a datagram socket for |
| 296 | * IP_PKTINFO and IP_RECVPKTINFO. |
| 297 | */ |
| 298 | struct in_pktinfo { |
| 299 | struct in_addr ipi_addr; /* src/dst address */ |
| 300 | unsigned int ipi_ifindex; /* interface index */ |
| 301 | }; |
| 302 | |
| 303 | /* |
| 304 | * Defaults and limits for options |
| 305 | */ |
| 306 | #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ |
| 307 | #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ |
| 308 | #define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */ |
| 309 | |
| 310 | /* |
| 311 | * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. |
| 312 | */ |
| 313 | struct ip_mreq { |
| 314 | struct in_addr imr_multiaddr; /* IP multicast address of group */ |
| 315 | struct in_addr imr_interface; /* local IP address of interface */ |
| 316 | }; |
| 317 | |
| 318 | /* |
| 319 | * Argument for IP_PORTRANGE: |
| 320 | * - which range to search when port is unspecified at bind() or connect() |
| 321 | */ |
| 322 | #define IP_PORTRANGE_DEFAULT 0 /* default range */ |
| 323 | #define IP_PORTRANGE_HIGH 1 /* same as DEFAULT (FreeBSD compat) */ |
| 324 | #define IP_PORTRANGE_LOW 2 /* use privileged range */ |
| 325 | |
| 326 | #if defined(_NETBSD_SOURCE) |
| 327 | /* |
| 328 | * Definitions for inet sysctl operations. |
| 329 | * |
| 330 | * Third level is protocol number. |
| 331 | * Fourth level is desired variable within that protocol. |
| 332 | */ |
| 333 | #define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ |
| 334 | |
| 335 | #define CTL_IPPROTO_NAMES { \ |
| 336 | { "ip", CTLTYPE_NODE }, \ |
| 337 | { "icmp", CTLTYPE_NODE }, \ |
| 338 | { "igmp", CTLTYPE_NODE }, \ |
| 339 | { "ggp", CTLTYPE_NODE }, \ |
| 340 | { 0, 0 }, \ |
| 341 | { 0, 0 }, \ |
| 342 | { "tcp", CTLTYPE_NODE }, \ |
| 343 | { 0, 0 }, \ |
| 344 | { "egp", CTLTYPE_NODE }, \ |
| 345 | { 0, 0 }, \ |
| 346 | { 0, 0 }, \ |
| 347 | { 0, 0 }, \ |
| 348 | { "pup", CTLTYPE_NODE }, \ |
| 349 | { 0, 0 }, \ |
| 350 | { 0, 0 }, \ |
| 351 | { 0, 0 }, \ |
| 352 | { 0, 0 }, \ |
| 353 | { "udp", CTLTYPE_NODE }, \ |
| 354 | { 0, 0 }, \ |
| 355 | { 0, 0 }, \ |
| 356 | { 0, 0 }, \ |
| 357 | { 0, 0 }, \ |
| 358 | { "idp", CTLTYPE_NODE }, \ |
| 359 | { 0, 0 }, \ |
| 360 | { 0, 0 }, \ |
| 361 | { 0, 0 }, \ |
| 362 | { 0, 0 }, \ |
| 363 | { 0, 0 }, \ |
| 364 | { 0, 0 }, \ |
| 365 | { 0, 0 }, \ |
| 366 | { 0, 0 }, \ |
| 367 | { 0, 0 }, \ |
| 368 | { 0, 0 }, \ |
| 369 | { 0, 0 }, \ |
| 370 | { 0, 0 }, \ |
| 371 | { 0, 0 }, \ |
| 372 | { 0, 0 }, \ |
| 373 | { 0, 0 }, \ |
| 374 | { 0, 0 }, \ |
| 375 | { 0, 0 }, \ |
| 376 | { 0, 0 }, \ |
| 377 | { 0, 0 }, \ |
| 378 | { 0, 0 }, \ |
| 379 | { 0, 0 }, \ |
| 380 | { 0, 0 }, \ |
| 381 | { 0, 0 }, \ |
| 382 | { 0, 0 }, \ |
| 383 | { 0, 0 }, \ |
| 384 | { 0, 0 }, \ |
| 385 | { 0, 0 }, \ |
| 386 | { 0, 0 }, \ |
| 387 | { "ipsec", CTLTYPE_NODE }, \ |
| 388 | { 0, 0 }, \ |
| 389 | { 0, 0 }, \ |
| 390 | { 0, 0 }, \ |
| 391 | { 0, 0 }, \ |
| 392 | { 0, 0 }, \ |
| 393 | { 0, 0 }, \ |
| 394 | { 0, 0 }, \ |
| 395 | { 0, 0 }, \ |
| 396 | { 0, 0 }, \ |
| 397 | { 0, 0 }, \ |
| 398 | { 0, 0 }, \ |
| 399 | { 0, 0 }, \ |
| 400 | { 0, 0 }, \ |
| 401 | { 0, 0 }, \ |
| 402 | { 0, 0 }, \ |
| 403 | { 0, 0 }, \ |
| 404 | { 0, 0 }, \ |
| 405 | { 0, 0 }, \ |
| 406 | { 0, 0 }, \ |
| 407 | { 0, 0 }, \ |
| 408 | { 0, 0 }, \ |
| 409 | { 0, 0 }, \ |
| 410 | { 0, 0 }, \ |
| 411 | { 0, 0 }, \ |
| 412 | { 0, 0 }, \ |
| 413 | { 0, 0 }, \ |
| 414 | { 0, 0 }, \ |
| 415 | { 0, 0 }, \ |
| 416 | { 0, 0 }, \ |
| 417 | { 0, 0 }, \ |
| 418 | { 0, 0 }, \ |
| 419 | { 0, 0 }, \ |
| 420 | { 0, 0 }, \ |
| 421 | { 0, 0 }, \ |
| 422 | { 0, 0 }, \ |
| 423 | { 0, 0 }, \ |
| 424 | { 0, 0 }, \ |
| 425 | { 0, 0 }, \ |
| 426 | { 0, 0 }, \ |
| 427 | { 0, 0 }, \ |
| 428 | { 0, 0 }, \ |
| 429 | { 0, 0 }, \ |
| 430 | { 0, 0 }, \ |
| 431 | { 0, 0 }, \ |
| 432 | { 0, 0 }, \ |
| 433 | { 0, 0 }, \ |
| 434 | { 0, 0 }, \ |
| 435 | { 0, 0 }, \ |
| 436 | { 0, 0 }, \ |
| 437 | { 0, 0 }, \ |
| 438 | { 0, 0 }, \ |
| 439 | { "pim", CTLTYPE_NODE }, \ |
| 440 | } |
| 441 | |
| 442 | /* |
| 443 | * Names for IP sysctl objects |
| 444 | */ |
| 445 | #define IPCTL_FORWARDING 1 /* act as router */ |
| 446 | #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ |
| 447 | #define IPCTL_DEFTTL 3 /* default TTL */ |
| 448 | #ifdef notyet |
| 449 | #define IPCTL_DEFMTU 4 /* default MTU */ |
| 450 | #endif |
| 451 | #define IPCTL_FORWSRCRT 5 /* forward source-routed packets */ |
| 452 | #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */ |
| 453 | #define IPCTL_ALLOWSRCRT 7 /* allow/drop all source-routed pkts */ |
| 454 | #define IPCTL_SUBNETSARELOCAL 8 /* treat subnets as local addresses */ |
| 455 | #define IPCTL_MTUDISC 9 /* allow path MTU discovery */ |
| 456 | #define IPCTL_ANONPORTMIN 10 /* minimum ephemeral port */ |
| 457 | #define IPCTL_ANONPORTMAX 11 /* maximum ephemeral port */ |
| 458 | #define IPCTL_MTUDISCTIMEOUT 12 /* allow path MTU discovery */ |
| 459 | #define IPCTL_MAXFLOWS 13 /* maximum ip flows allowed */ |
| 460 | #define IPCTL_HOSTZEROBROADCAST 14 /* is host zero a broadcast addr? */ |
| 461 | #define IPCTL_GIF_TTL 15 /* default TTL for gif encap packet */ |
| 462 | #define IPCTL_LOWPORTMIN 16 /* minimum reserved port */ |
| 463 | #define IPCTL_LOWPORTMAX 17 /* maximum reserved port */ |
| 464 | #define IPCTL_MAXFRAGPACKETS 18 /* max packets reassembly queue */ |
| 465 | #define IPCTL_GRE_TTL 19 /* default TTL for gre encap packet */ |
| 466 | #define IPCTL_CHECKINTERFACE 20 /* drop pkts in from 'wrong' iface */ |
| 467 | #define IPCTL_IFQ 21 /* IP packet input queue */ |
| 468 | #define IPCTL_RANDOMID 22 /* use random IP ids (if configured) */ |
| 469 | #define IPCTL_LOOPBACKCKSUM 23 /* do IP checksum on loopback */ |
| 470 | #define IPCTL_STATS 24 /* IP statistics */ |
| 471 | #define IPCTL_DAD_COUNT 25 /* DAD packets to send */ |
| 472 | #define IPCTL_MAXID 26 |
| 473 | |
| 474 | #define IPCTL_NAMES { \ |
| 475 | { 0, 0 }, \ |
| 476 | { "forwarding", CTLTYPE_INT }, \ |
| 477 | { "redirect", CTLTYPE_INT }, \ |
| 478 | { "ttl", CTLTYPE_INT }, \ |
| 479 | { "mtu", CTLTYPE_INT }, \ |
| 480 | { "forwsrcrt", CTLTYPE_INT }, \ |
| 481 | { "directed-broadcast", CTLTYPE_INT }, \ |
| 482 | { "allowsrcrt", CTLTYPE_INT }, \ |
| 483 | { "subnetsarelocal", CTLTYPE_INT }, \ |
| 484 | { "mtudisc", CTLTYPE_INT }, \ |
| 485 | { "anonportmin", CTLTYPE_INT }, \ |
| 486 | { "anonportmax", CTLTYPE_INT }, \ |
| 487 | { "mtudisctimeout", CTLTYPE_INT }, \ |
| 488 | { "maxflows", CTLTYPE_INT }, \ |
| 489 | { "hostzerobroadcast", CTLTYPE_INT }, \ |
| 490 | { "gifttl", CTLTYPE_INT }, \ |
| 491 | { "lowportmin", CTLTYPE_INT }, \ |
| 492 | { "lowportmax", CTLTYPE_INT }, \ |
| 493 | { "maxfragpackets", CTLTYPE_INT }, \ |
| 494 | { "grettl", CTLTYPE_INT }, \ |
| 495 | { "checkinterface", CTLTYPE_INT }, \ |
| 496 | { "ifq", CTLTYPE_NODE }, \ |
| 497 | { "random_id", CTLTYPE_INT }, \ |
| 498 | { "do_loopback_cksum", CTLTYPE_INT }, \ |
| 499 | { "stats", CTLTYPE_STRUCT }, \ |
| 500 | { "dad_count", CTLTYPE_INT }, \ |
| 501 | } |
| 502 | #endif /* _NETBSD_SOURCE */ |
| 503 | |
| 504 | /* INET6 stuff */ |
| 505 | #define __KAME_NETINET_IN_H_INCLUDED_ |
| 506 | #include <netinet6/in6.h> |
| 507 | #undef __KAME_NETINET_IN_H_INCLUDED_ |
| 508 | |
| 509 | #ifdef _KERNEL |
| 510 | #include <sys/psref.h> |
| 511 | |
| 512 | /* |
| 513 | * in_cksum_phdr: |
| 514 | * |
| 515 | * Compute significant parts of the IPv4 checksum pseudo-header |
| 516 | * for use in a delayed TCP/UDP checksum calculation. |
| 517 | * |
| 518 | * Args: |
| 519 | * |
| 520 | * src Source IP address |
| 521 | * dst Destination IP address |
| 522 | * lenproto htons(proto-hdr-len + proto-number) |
| 523 | */ |
| 524 | static __inline u_int16_t __unused |
| 525 | in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto) |
| 526 | { |
| 527 | u_int32_t sum; |
| 528 | |
| 529 | sum = lenproto + |
| 530 | (u_int16_t)(src >> 16) + |
| 531 | (u_int16_t)(src /*& 0xffff*/) + |
| 532 | (u_int16_t)(dst >> 16) + |
| 533 | (u_int16_t)(dst /*& 0xffff*/); |
| 534 | |
| 535 | sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/); |
| 536 | |
| 537 | if (sum > 0xffff) |
| 538 | sum -= 0xffff; |
| 539 | |
| 540 | return (sum); |
| 541 | } |
| 542 | |
| 543 | /* |
| 544 | * in_cksum_addword: |
| 545 | * |
| 546 | * Add the two 16-bit network-order values, carry, and return. |
| 547 | */ |
| 548 | static __inline u_int16_t __unused |
| 549 | in_cksum_addword(u_int16_t a, u_int16_t b) |
| 550 | { |
| 551 | u_int32_t sum = a + b; |
| 552 | |
| 553 | if (sum > 0xffff) |
| 554 | sum -= 0xffff; |
| 555 | |
| 556 | return (sum); |
| 557 | } |
| 558 | |
| 559 | extern struct in_addr zeroin_addr; |
| 560 | extern u_char ip_protox[]; |
| 561 | extern const struct sockaddr_in in_any; |
| 562 | |
| 563 | int in_broadcast(struct in_addr, struct ifnet *); |
| 564 | int in_canforward(struct in_addr); |
| 565 | int cpu_in_cksum(struct mbuf *, int, int, uint32_t); |
| 566 | int in_cksum(struct mbuf *, int); |
| 567 | int in4_cksum(struct mbuf *, u_int8_t, int, int); |
| 568 | void in_delayed_cksum(struct mbuf *); |
| 569 | int in_localaddr(struct in_addr); |
| 570 | void in_socktrim(struct sockaddr_in *); |
| 571 | |
| 572 | void in_if_link_up(struct ifnet *); |
| 573 | void in_if_link_down(struct ifnet *); |
| 574 | void in_if_up(struct ifnet *); |
| 575 | void in_if_down(struct ifnet *); |
| 576 | void in_if_link_state_change(struct ifnet *, int); |
| 577 | |
| 578 | struct route; |
| 579 | struct ip_moptions; |
| 580 | |
| 581 | struct in_ifaddr *in_selectsrc(struct sockaddr_in *, |
| 582 | struct route *, int, struct ip_moptions *, int *, struct psref *); |
| 583 | |
| 584 | #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) |
| 585 | #define in_nullhost(x) ((x).s_addr == INADDR_ANY) |
| 586 | |
| 587 | #define satosin(sa) ((struct sockaddr_in *)(sa)) |
| 588 | #define satocsin(sa) ((const struct sockaddr_in *)(sa)) |
| 589 | #define sintosa(sin) ((struct sockaddr *)(sin)) |
| 590 | #define sintocsa(sin) ((const struct sockaddr *)(sin)) |
| 591 | #define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) |
| 592 | |
| 593 | int sockaddr_in_cmp(const struct sockaddr *, const struct sockaddr *); |
| 594 | const void *sockaddr_in_const_addr(const struct sockaddr *, socklen_t *); |
| 595 | void *sockaddr_in_addr(struct sockaddr *, socklen_t *); |
| 596 | |
| 597 | static inline void |
| 598 | sockaddr_in_init1(struct sockaddr_in *sin, const struct in_addr *addr, |
| 599 | in_port_t port) |
| 600 | { |
| 601 | sin->sin_port = port; |
| 602 | sin->sin_addr = *addr; |
| 603 | memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); |
| 604 | } |
| 605 | |
| 606 | static inline void |
| 607 | sockaddr_in_init(struct sockaddr_in *sin, const struct in_addr *addr, |
| 608 | in_port_t port) |
| 609 | { |
| 610 | sin->sin_family = AF_INET; |
| 611 | sin->sin_len = sizeof(*sin); |
| 612 | sockaddr_in_init1(sin, addr, port); |
| 613 | } |
| 614 | |
| 615 | static inline struct sockaddr * |
| 616 | sockaddr_in_alloc(const struct in_addr *addr, in_port_t port, int flags) |
| 617 | { |
| 618 | struct sockaddr *sa; |
| 619 | |
| 620 | sa = sockaddr_alloc(AF_INET, sizeof(struct sockaddr_in), flags); |
| 621 | |
| 622 | if (sa == NULL) |
| 623 | return NULL; |
| 624 | |
| 625 | sockaddr_in_init1(satosin(sa), addr, port); |
| 626 | |
| 627 | return sa; |
| 628 | } |
| 629 | #endif /* _KERNEL */ |
| 630 | |
| 631 | #if defined(_KERNEL) || defined(_TEST) |
| 632 | int in_print(char *, size_t, const struct in_addr *); |
| 633 | #define IN_PRINT(b, a) (in_print((b), sizeof(b), a), (b)) |
| 634 | int sin_print(char *, size_t, const void *); |
| 635 | #endif |
| 636 | |
| 637 | #endif /* !_NETINET_IN_H_ */ |
| 638 | |