1 /* 2 * Copyright (c) 2000-2018 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1982, 1986, 1990, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Berkeley and its contributors. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in.h 8.3 (Berkeley) 1/3/94 61 * $FreeBSD: src/sys/netinet/in.h,v 1.48.2.2 2001/04/21 14:53:06 ume Exp $ 62 */ 63 64 #ifndef _NETINET_IN_PRIVATE_H_ 65 #define _NETINET_IN_PRIVATE_H_ 66 67 #include <netinet/in.h> 68 #include <sys/socket.h> 69 #include <sys/types.h> 70 71 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 72 /* 253-254: Experimentation and testing; 255: Reserved (RFC3692) */ 73 /* BSD Private, local use, namespace incursion */ 74 #define IPPROTO_QUIC 253 /* QUIC protocol (Over UDP) */ 75 76 #ifdef __APPLE__ 77 #define IN_SHARED_ADDRESS_SPACE(i) ((((u_int32_t)(i)) & (u_int32_t)0xffc00000) \ 78 == (u_int32_t)0x64400000) 79 80 #define IN_DS_LITE(i) ((((u_int32_t)(i)) & (u_int32_t)0xfffffff8) == (u_int32_t)0xc0000000) 81 82 #define IN_6TO4_RELAY_ANYCAST(i) ((((u_int32_t)(i)) & (u_int32_t)IN_CLASSC_NET) == (u_int32_t)0xc0586300) 83 #endif /* __APPLE__ */ 84 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 85 86 /* 87 * sockaddr_in with scope ID field; this is used internally to keep 88 * track of scoped route entries in the routing table. The fact that 89 * such a value is embedded in the structure is an artifact of the 90 * current implementation which could change in future. 91 */ 92 struct sockaddr_inifscope { 93 __uint8_t sin_len; 94 sa_family_t sin_family; 95 in_port_t sin_port; 96 struct in_addr sin_addr; 97 /* 98 * To avoid possible conflict with an overlaid sockaddr_inarp 99 * having sin_other set to SIN_PROXY, we use the first 4-bytes 100 * of sin_zero since sin_srcaddr is one of the unused fields 101 * in sockaddr_inarp. 102 */ 103 union { 104 char sin_zero[8]; 105 struct { 106 __uint32_t ifscope; 107 } _in_index; 108 } un; 109 #define sin_scope_id un._in_index.ifscope 110 }; 111 112 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 113 114 /* 115 * Options for use with [gs]etsockopt at the IP level. 116 * First word of comment is data type; bool is stored in int. 117 */ 118 #define IP_NO_IFT_CELLULAR 6969 /* for internal use only */ 119 #define IP_NO_IFT_PDP IP_NO_IFT_CELLULAR /* deprecated */ 120 #define IP_OUT_IF 9696 /* for internal use only */ 121 122 #ifdef BSD_KERNEL_PRIVATE 123 #define CTL_IPPROTO_NAMES { \ 124 { "ip", CTLTYPE_NODE }, \ 125 { "icmp", CTLTYPE_NODE }, \ 126 { "igmp", CTLTYPE_NODE }, \ 127 { "ggp", CTLTYPE_NODE }, \ 128 { 0, 0 }, \ 129 { 0, 0 }, \ 130 { "tcp", CTLTYPE_NODE }, \ 131 { 0, 0 }, \ 132 { "egp", CTLTYPE_NODE }, \ 133 { 0, 0 }, \ 134 { 0, 0 }, \ 135 { 0, 0 }, \ 136 { "pup", CTLTYPE_NODE }, \ 137 { 0, 0 }, \ 138 { 0, 0 }, \ 139 { 0, 0 }, \ 140 { 0, 0 }, \ 141 { "udp", CTLTYPE_NODE }, \ 142 { 0, 0 }, \ 143 { 0, 0 }, \ 144 { 0, 0 }, \ 145 { 0, 0 }, \ 146 { "idp", CTLTYPE_NODE }, \ 147 { 0, 0 }, \ 148 { 0, 0 }, \ 149 { 0, 0 }, \ 150 { 0, 0 }, \ 151 { 0, 0 }, \ 152 { 0, 0 }, \ 153 { 0, 0 }, \ 154 { 0, 0 }, \ 155 { 0, 0 }, \ 156 { 0, 0 }, \ 157 { 0, 0 }, \ 158 { 0, 0 }, \ 159 { 0, 0 }, \ 160 { 0, 0 }, \ 161 { 0, 0 }, \ 162 { 0, 0 }, \ 163 { 0, 0 }, \ 164 { 0, 0 }, \ 165 { 0, 0 }, \ 166 { 0, 0 }, \ 167 { 0, 0 }, \ 168 { 0, 0 }, \ 169 { 0, 0 }, \ 170 { 0, 0 }, \ 171 { 0, 0 }, \ 172 { 0, 0 }, \ 173 { 0, 0 }, \ 174 { 0, 0 }, \ 175 { "ipsec", CTLTYPE_NODE }, \ 176 } 177 178 #define IPCTL_NAMES { \ 179 { 0, 0 }, \ 180 { "forwarding", CTLTYPE_INT }, \ 181 { "redirect", CTLTYPE_INT }, \ 182 { "ttl", CTLTYPE_INT }, \ 183 { "mtu", CTLTYPE_INT }, \ 184 { "rtexpire", CTLTYPE_INT }, \ 185 { "rtminexpire", CTLTYPE_INT }, \ 186 { "rtmaxcache", CTLTYPE_INT }, \ 187 { "sourceroute", CTLTYPE_INT }, \ 188 { "directed-broadcast", CTLTYPE_INT }, \ 189 { "intr-queue-maxlen", CTLTYPE_INT }, \ 190 { "intr-queue-drops", CTLTYPE_INT }, \ 191 { "stats", CTLTYPE_STRUCT }, \ 192 { "accept_sourceroute", CTLTYPE_INT }, \ 193 { "fastforwarding", CTLTYPE_INT }, \ 194 { "keepfaith", CTLTYPE_INT }, \ 195 { "gifttl", CTLTYPE_INT }, \ 196 } 197 #endif /* BSD_KERNEL_PRIVATE */ 198 199 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 200 201 /* INET6 stuff */ 202 #define __KAME_NETINET_IN_PRIVATE_H_INCLUDED_ 203 #include <netinet6/in6_private.h> 204 #undef __KAME_NETINET_IN_PRIVATE_H_INCLUDED_ 205 206 /* 207 * Minimal sized structure to hold an IPv4 or IPv6 socket address 208 * as sockaddr_storage can waste memory 209 */ 210 211 union sockaddr_in_4_6 { 212 struct sockaddr sa; 213 struct __sockaddr_header sah; 214 struct sockaddr_in sin; 215 struct sockaddr_in6 sin6; 216 }; 217 #define CLAT46_HDR_EXPANSION_OVERHD (sizeof(struct ip6_hdr) - sizeof(struct ip)) 218 219 /* 220 * Recommended DiffServ Code Point values 221 */ 222 223 #define _DSCP_DF 0 /* RFC 2474 */ 224 225 #define _DSCP_CS0 0 /* RFC 2474 */ 226 #define _DSCP_CS1 8 /* RFC 2474 */ 227 #define _DSCP_CS2 16 /* RFC 2474 */ 228 #define _DSCP_CS3 24 /* RFC 2474 */ 229 #define _DSCP_CS4 32 /* RFC 2474 */ 230 #define _DSCP_CS5 40 /* RFC 2474 */ 231 #define _DSCP_CS6 48 /* RFC 2474 */ 232 #define _DSCP_CS7 56 /* RFC 2474 */ 233 234 #define _DSCP_EF 46 /* RFC 2474 */ 235 #define _DSCP_VA 44 /* RFC 5865 */ 236 237 #define _DSCP_AF11 10 /* RFC 2597 */ 238 #define _DSCP_AF12 12 /* RFC 2597 */ 239 #define _DSCP_AF13 14 /* RFC 2597 */ 240 #define _DSCP_AF21 18 /* RFC 2597 */ 241 #define _DSCP_AF22 20 /* RFC 2597 */ 242 #define _DSCP_AF23 22 /* RFC 2597 */ 243 #define _DSCP_AF31 26 /* RFC 2597 */ 244 #define _DSCP_AF32 28 /* RFC 2597 */ 245 #define _DSCP_AF33 30 /* RFC 2597 */ 246 #define _DSCP_AF41 34 /* RFC 2597 */ 247 #define _DSCP_AF42 36 /* RFC 2597 */ 248 #define _DSCP_AF43 38 /* RFC 2597 */ 249 250 #define _DSCP_52 52 /* Wi-Fi WMM Certification: Sigma */ 251 252 #define _MAX_DSCP 63 /* coded on 6 bits */ 253 254 #ifndef XNU_PLATFORM_DriverKit 255 #ifdef KERNEL 256 #ifdef BSD_KERNEL_PRIVATE 257 #include <mach/boolean.h> 258 259 struct ip; 260 struct ifnet; 261 struct mbuf; 262 263 extern boolean_t in_broadcast(struct in_addr, struct ifnet *); 264 extern boolean_t in_canforward(struct in_addr); 265 extern u_int32_t in_netof(struct in_addr); 266 267 extern uint32_t os_cpu_in_cksum_mbuf(struct mbuf *m, int len, int off, 268 uint32_t initial_sum); 269 270 extern uint16_t inet_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t); 271 extern uint16_t inet_cksum_buffer(const void *__sized_by(__len), uint32_t, uint32_t, uint32_t __len); 272 extern uint16_t in_addword(uint16_t, uint16_t); 273 extern uint16_t in_pseudo(uint32_t, uint32_t, uint32_t); 274 extern uint16_t in_pseudo64(uint64_t, uint64_t, uint64_t); 275 extern uint16_t in_cksum_hdr_opt(const struct ip *); 276 extern uint16_t ip_cksum_hdr_dir(struct mbuf *, uint32_t, int); 277 extern uint16_t ip_cksum_hdr_dir_buffer(const void *__sized_by(__len), uint32_t, uint32_t __len, int); 278 extern uint32_t in_finalize_cksum(struct mbuf *, uint32_t, uint32_t); 279 extern uint16_t b_sum16(const void *__sized_by(len)buf, int len); 280 #if DEBUG || DEVELOPMENT 281 extern uint32_t in_cksum_mbuf_ref(struct mbuf *, int, int, uint32_t); 282 #endif /* DEBUG || DEVELOPMENT */ 283 284 extern int in_getconninfo(struct socket *, sae_connid_t, uint32_t *, 285 uint32_t *, int32_t *, user_addr_t, socklen_t *, user_addr_t, socklen_t *, 286 uint32_t *, user_addr_t, uint32_t *); 287 extern struct in_ifaddr * inifa_ifpwithflag(struct ifnet *, uint32_t); 288 extern struct in_ifaddr * inifa_ifpclatv4(struct ifnet *); 289 290 #define in_cksum(_m, _l) \ 291 inet_cksum(_m, 0, 0, _l) 292 #define in_cksum_buffer(_b, _l) \ 293 inet_cksum_buffer(_b, 0, 0, _l) 294 #define ip_cksum_hdr_in(_m, _l) \ 295 ip_cksum_hdr_dir(_m, _l, 0) 296 #define ip_cksum_hdr_out(_m, _l) \ 297 ip_cksum_hdr_dir(_m, _l, 1) 298 299 #define in_cksum_hdr(_ip) \ 300 (~b_sum16(_ip, sizeof (struct ip)) & 0xffff) 301 302 #define in_cksum_offset(_m, _o) \ 303 ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_IP)) 304 #define in_delayed_cksum(_m) \ 305 ((void) in_finalize_cksum(_m, 0, CSUM_DELAY_DATA)) 306 #define in_delayed_cksum_offset(_m, _o) \ 307 ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_DATA)) 308 309 #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 310 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 311 #define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) 312 313 #define SIN(s) ((struct sockaddr_in *)(void *)s) 314 #define satosin(sa) SIN(sa) 315 #define sintosa(sin) ((struct sockaddr *)(void *)(sin)) 316 #define SINIFSCOPE(s) ((struct sockaddr_inifscope *)(void *)(s)) 317 318 #define IPTOS_UNSPEC (-1) /* TOS byte not set */ 319 #define IPTOS_MASK 0xFF /* TOS byte mask */ 320 #endif /* BSD_KERNEL_PRIVATE */ 321 322 #ifdef KERNEL_PRIVATE 323 /* exported for ApplicationFirewall */ 324 extern int in_localaddr(struct in_addr); 325 extern int inaddr_local(struct in_addr); 326 327 extern char *inet_ntoa(struct in_addr); 328 extern char *inet_ntoa_r(struct in_addr ina, char *buf, 329 size_t buflen); 330 extern int inet_pton(int af, const char *, void *); 331 #endif /* KERNEL_PRIVATE */ 332 333 #endif /* KERNEL */ 334 #endif /* XNU_PLATFORM_DriverKit */ 335 336 #endif /* _NETINET_IN_PRIVATE_H_ */ 337