1 /* 2 * Copyright (c) 2000-2021 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, 1989, 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 * @(#)if.h 8.1 (Berkeley) 6/10/93 61 */ 62 63 #ifndef _NET_IF_H_ 64 #define _NET_IF_H_ 65 66 #define IF_NAMESIZE 16 67 68 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 69 #ifdef DRIVERKIT 70 #include <stddef.h> 71 #else 72 #include <sys/cdefs.h> 73 #include <sys/appleapiopts.h> 74 #ifdef __APPLE__ 75 76 #include <net/if_var.h> 77 #include <net/net_kev.h> 78 #include <sys/types.h> 79 #include <sys/socket.h> 80 81 #endif 82 #endif /* DRIVERKIT */ 83 84 #ifndef IFNAMSIZ 85 #define IFNAMSIZ IF_NAMESIZE 86 #endif 87 88 #ifndef DRIVERKIT 89 struct if_clonereq { 90 int ifcr_total; /* total cloners (out) */ 91 int ifcr_count; /* room for this many in user buffer */ 92 char *ifcr_buffer; /* buffer for cloner names */ 93 }; 94 95 #define IFF_UP 0x1 /* interface is up */ 96 #define IFF_BROADCAST 0x2 /* broadcast address valid */ 97 #define IFF_DEBUG 0x4 /* turn on debugging */ 98 #define IFF_LOOPBACK 0x8 /* is a loopback net */ 99 #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 100 #define IFF_NOTRAILERS 0x20 /* obsolete: avoid use of trailers */ 101 #define IFF_RUNNING 0x40 /* resources allocated */ 102 #define IFF_NOARP 0x80 /* no address resolution protocol */ 103 #define IFF_PROMISC 0x100 /* receive all packets */ 104 #define IFF_ALLMULTI 0x200 /* receive all multicast packets */ 105 #define IFF_OACTIVE 0x400 /* transmission in progress */ 106 #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */ 107 #define IFF_LINK0 0x1000 /* per link layer defined bit */ 108 #define IFF_LINK1 0x2000 /* per link layer defined bit */ 109 #define IFF_LINK2 0x4000 /* per link layer defined bit */ 110 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 111 #define IFF_MULTICAST 0x8000 /* supports multicast */ 112 113 #ifdef PRIVATE 114 /* See if_private.h for extended flags */ 115 #endif /* PRIVATE */ 116 117 /* 118 * Capabilities that interfaces can advertise. 119 * 120 * struct ifnet.if_capabilities 121 * contains the optional features & capabilities a particular interface 122 * supports (not only the driver but also the detected hw revision). 123 * Capabilities are defined by IFCAP_* below. 124 * struct ifnet.if_capenable 125 * contains the enabled (either by default or through ifconfig) optional 126 * features & capabilities on this interface. 127 * Capabilities are defined by IFCAP_* below. 128 * struct if_data.ifi_hwassist in IFNET_* form, defined in net/kpi_interface.h, 129 * contains the enabled optional features & capabilites that can be used 130 * individually per packet and are specified in the mbuf pkthdr.csum_flags 131 * field. IFCAP_* and IFNET_* do not match one to one and IFNET_* may be 132 * more detailed or differentiated than IFCAP_*. 133 * IFNET_* hwassist flags have corresponding CSUM_* in sys/mbuf.h 134 */ 135 #define IFCAP_RXCSUM 0x00001 /* can offload checksum on RX */ 136 #define IFCAP_TXCSUM 0x00002 /* can offload checksum on TX */ 137 #define IFCAP_VLAN_MTU 0x00004 /* VLAN-compatible MTU */ 138 #define IFCAP_VLAN_HWTAGGING 0x00008 /* hardware VLAN tag support */ 139 #define IFCAP_JUMBO_MTU 0x00010 /* 9000 byte MTU supported */ 140 #define IFCAP_TSO4 0x00020 /* can do TCP Segmentation Offload */ 141 #define IFCAP_TSO6 0x00040 /* can do TCP6 Segmentation Offload */ 142 #define IFCAP_LRO 0x00080 /* can do Large Receive Offload */ 143 #define IFCAP_AV 0x00100 /* can do 802.1 AV Bridging */ 144 #define IFCAP_TXSTATUS 0x00200 /* can return linklevel xmit status */ 145 #define IFCAP_SKYWALK 0x00400 /* Skywalk mode supported/enabled */ 146 #define IFCAP_HW_TIMESTAMP 0x00800 /* Time stamping in hardware */ 147 #define IFCAP_SW_TIMESTAMP 0x01000 /* Time stamping in software */ 148 #define IFCAP_CSUM_PARTIAL 0x02000 /* can offload partial checksum */ 149 #define IFCAP_CSUM_ZERO_INVERT 0x04000 /* can invert 0 to -0 (0xffff) */ 150 151 #define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) 152 #define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) 153 154 #define IFCAP_VALID (IFCAP_HWCSUM | IFCAP_TSO | IFCAP_LRO | IFCAP_VLAN_MTU | \ 155 IFCAP_VLAN_HWTAGGING | IFCAP_JUMBO_MTU | IFCAP_AV | IFCAP_TXSTATUS | \ 156 IFCAP_SKYWALK | IFCAP_SW_TIMESTAMP | IFCAP_HW_TIMESTAMP | \ 157 IFCAP_CSUM_PARTIAL | IFCAP_CSUM_ZERO_INVERT) 158 159 #define IFQ_MAXLEN 128 160 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 161 #define IFQ_DEF_C_TARGET_DELAY (10ULL * 1000 * 1000) /* 10 ms */ 162 #define IFQ_DEF_C_UPDATE_INTERVAL (100ULL * 1000 * 1000) /* 100 ms */ 163 #define IFQ_DEF_L4S_TARGET_DELAY (2ULL * 1000 * 1000) /* 2 ms */ 164 #define IFQ_DEF_L4S_WIRELESS_TARGET_DELAY (15ULL * 1000 * 1000) /* 15 ms */ 165 #define IFQ_DEF_L4S_UPDATE_INTERVAL (100ULL * 1000 * 1000) /* 100 ms */ 166 #define IFQ_LL_C_TARGET_DELAY (10ULL * 1000 * 1000) /* 10 ms */ 167 #define IFQ_LL_C_UPDATE_INTERVAL (100ULL * 1000 * 1000) /* 100 ms */ 168 #define IFQ_LL_L4S_TARGET_DELAY (2ULL * 1000 * 1000) /* 2 ms */ 169 #define IFQ_LL_L4S_WIRELESS_TARGET_DELAY (15ULL * 1000 * 1000) /* 15 ms */ 170 #define IFQ_LL_L4S_UPDATE_INTERVAL (100ULL * 1000 * 1000) /* 100 ms */ 171 /* 172 * Message format for use in obtaining information about interfaces 173 * from sysctl and the routing socket 174 */ 175 struct if_msghdr { 176 unsigned short ifm_msglen; /* to skip non-understood messages */ 177 unsigned char ifm_version; /* future binary compatability */ 178 unsigned char ifm_type; /* message type */ 179 int ifm_addrs; /* like rtm_addrs */ 180 int ifm_flags; /* value of if_flags */ 181 unsigned short ifm_index; /* index for associated ifp */ 182 struct if_data ifm_data; /* statistics and other data about if */ 183 }; 184 185 /* 186 * Message format for use in obtaining information about interface addresses 187 * from sysctl and the routing socket 188 */ 189 struct ifa_msghdr { 190 unsigned short ifam_msglen; /* to skip non-understood messages */ 191 unsigned char ifam_version; /* future binary compatability */ 192 unsigned char ifam_type; /* message type */ 193 int ifam_addrs; /* like rtm_addrs */ 194 int ifam_flags; /* value of ifa_flags */ 195 unsigned short ifam_index; /* index for associated ifp */ 196 int ifam_metric; /* value of ifa_metric */ 197 }; 198 199 /* 200 * Message format for use in obtaining information about multicast addresses 201 * from the routing socket 202 */ 203 struct ifma_msghdr { 204 unsigned short ifmam_msglen; /* to skip non-understood messages */ 205 unsigned char ifmam_version; /* future binary compatability */ 206 unsigned char ifmam_type; /* message type */ 207 int ifmam_addrs; /* like rtm_addrs */ 208 int ifmam_flags; /* value of ifa_flags */ 209 unsigned short ifmam_index; /* index for associated ifp */ 210 }; 211 212 /* 213 * Message format for use in obtaining information about interfaces 214 * from sysctl 215 */ 216 struct if_msghdr2 { 217 u_short ifm_msglen; /* to skip over non-understood messages */ 218 u_char ifm_version; /* future binary compatability */ 219 u_char ifm_type; /* message type */ 220 int ifm_addrs; /* like rtm_addrs */ 221 int ifm_flags; /* value of if_flags */ 222 u_short ifm_index; /* index for associated ifp */ 223 int ifm_snd_len; /* instantaneous length of send queue */ 224 int ifm_snd_maxlen; /* maximum length of send queue */ 225 int ifm_snd_drops; /* number of drops in send queue */ 226 int ifm_timer; /* time until if_watchdog called */ 227 struct if_data64 ifm_data; /* statistics and other data */ 228 }; 229 230 /* 231 * Message format for use in obtaining information about multicast addresses 232 * from sysctl 233 */ 234 struct ifma_msghdr2 { 235 u_short ifmam_msglen; /* to skip over non-understood messages */ 236 u_char ifmam_version; /* future binary compatability */ 237 u_char ifmam_type; /* message type */ 238 int ifmam_addrs; /* like rtm_addrs */ 239 int ifmam_flags; /* value of ifa_flags */ 240 u_short ifmam_index; /* index for associated ifp */ 241 int32_t ifmam_refcount; 242 }; 243 244 /* 245 * ifdevmtu: interface device mtu 246 * Used with SIOCGIFDEVMTU to get the current mtu in use by the device, 247 * as well as the minimum and maximum mtu allowed by the device. 248 */ 249 struct ifdevmtu { 250 int ifdm_current; 251 int ifdm_min; 252 int ifdm_max; 253 }; 254 255 #pragma pack(4) 256 257 /* 258 * ifkpi: interface kpi ioctl 259 * Used with SIOCSIFKPI and SIOCGIFKPI. 260 * 261 * ifk_module_id - From in the kernel, a value from kev_vendor_code_find. From 262 * user space, a value from SIOCGKEVVENDOR ioctl on a kernel event socket. 263 * ifk_type - The type. Types are specific to each module id. 264 * ifk_data - The data. ifk_ptr may be a 64bit pointer for 64 bit processes. 265 * 266 * Copying data between user space and kernel space is done using copyin 267 * and copyout. A process may be running in 64bit mode. In such a case, 268 * the pointer will be a 64bit pointer, not a 32bit pointer. The following 269 * sample is a safe way to copy the data in to the kernel from either a 270 * 32bit or 64bit process: 271 * 272 * user_addr_t tmp_ptr; 273 * if (IS_64BIT_PROCESS(current_proc())) { 274 * tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr64); 275 * } 276 * else { 277 * tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr); 278 * } 279 * error = copyin(tmp_ptr, allocated_dst_buffer, size of allocated_dst_buffer); 280 */ 281 282 struct ifkpi { 283 unsigned int ifk_module_id; 284 unsigned int ifk_type; 285 union { 286 void *ifk_ptr; 287 int ifk_value; 288 #ifdef KERNEL 289 u_int64_t ifk_ptr64; 290 #endif /* KERNEL */ 291 } ifk_data; 292 }; 293 294 /* Wake capabilities of a interface */ 295 #define IF_WAKE_ON_MAGIC_PACKET 0x01 296 297 298 #pragma pack() 299 300 #ifdef PRIVATE 301 /* 302 * IFREQ_OPAQUE means that ifreq is an opaque structure 303 * in the public header, and redeclared in if_private.h. 304 */ 305 #define IFREQ_OPAQUE 306 #endif /* PRIVATE */ 307 308 /* 309 * Interface request structure used for socket 310 * ioctl's. All interface ioctl's must have parameter 311 * definitions which begin with ifr_name. The 312 * remainder may be interface specific. 313 */ 314 #ifdef IFREQ_OPAQUE 315 struct ifreq; 316 #else 317 #ifdef PRIVATE 318 /* 319 * This is the public version of the ifreq structure, the 320 * private version lives in if_private.h. If you make any 321 * changes here, you must also make them in if_private.h! 322 */ 323 #endif 324 struct ifreq { 325 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 326 union { 327 struct sockaddr ifru_addr; 328 struct sockaddr ifru_dstaddr; 329 struct sockaddr ifru_broadaddr; 330 short ifru_flags; 331 int ifru_metric; 332 int ifru_mtu; 333 int ifru_phys; 334 int ifru_media; 335 int ifru_intval; 336 caddr_t ifru_data; 337 struct ifdevmtu ifru_devmtu; 338 struct ifkpi ifru_kpi; 339 u_int32_t ifru_wake_flags; 340 u_int32_t ifru_route_refcnt; 341 int ifru_cap[2]; 342 u_int32_t ifru_functional_type; 343 #define IFRTYPE_FUNCTIONAL_UNKNOWN 0 344 #define IFRTYPE_FUNCTIONAL_LOOPBACK 1 345 #define IFRTYPE_FUNCTIONAL_WIRED 2 346 #define IFRTYPE_FUNCTIONAL_WIFI_INFRA 3 347 #define IFRTYPE_FUNCTIONAL_WIFI_AWDL 4 348 #define IFRTYPE_FUNCTIONAL_CELLULAR 5 349 #define IFRTYPE_FUNCTIONAL_INTCOPROC 6 350 #define IFRTYPE_FUNCTIONAL_COMPANIONLINK 7 351 #define IFRTYPE_FUNCTIONAL_MANAGEMENT 8 352 #define IFRTYPE_FUNCTIONAL_LAST 8 353 } ifr_ifru; 354 #define ifr_addr ifr_ifru.ifru_addr /* address */ 355 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 356 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 357 #ifdef __APPLE__ 358 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 359 #else 360 #define ifr_flags ifr_ifru.ifru_flags[0] /* flags */ 361 #define ifr_prevflags ifr_ifru.ifru_flags[1] /* flags */ 362 #endif /* __APPLE__ */ 363 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 364 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 365 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 366 #define ifr_media ifr_ifru.ifru_media /* physical media */ 367 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 368 #define ifr_devmtu ifr_ifru.ifru_devmtu 369 #define ifr_intval ifr_ifru.ifru_intval /* integer value */ 370 #define ifr_kpi ifr_ifru.ifru_kpi 371 #define ifr_wake_flags ifr_ifru.ifru_wake_flags /* wake capabilities */ 372 #define ifr_route_refcnt ifr_ifru.ifru_route_refcnt /* route references count */ 373 #define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ 374 #define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ 375 }; 376 377 #define _SIZEOF_ADDR_IFREQ(ifr) \ 378 ((ifr).ifr_addr.sa_len > sizeof (struct sockaddr) ? \ 379 (sizeof (struct ifreq) - sizeof (struct sockaddr) + \ 380 (ifr).ifr_addr.sa_len) : sizeof (struct ifreq)) 381 #endif /* IFREQ_OPAQUE */ 382 383 struct ifaliasreq { 384 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 385 #if __has_ptrcheck 386 struct sockaddr_in ifra_addr; 387 struct sockaddr_in ifra_broadaddr; 388 struct sockaddr_in ifra_mask; 389 #else 390 struct sockaddr ifra_addr; 391 struct sockaddr ifra_broadaddr; 392 struct sockaddr ifra_mask; 393 #endif /* __has_ptrcheck */ 394 }; 395 396 struct rslvmulti_req { 397 struct sockaddr *sa; 398 struct sockaddr **llsa; 399 }; 400 401 #if !defined(KERNEL) || defined(KERNEL_PRIVATE) 402 #pragma pack(4) 403 404 struct ifmediareq { 405 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 406 int ifm_current; /* current media options */ 407 int ifm_mask; /* don't care mask */ 408 int ifm_status; /* media status */ 409 int ifm_active; /* active options */ 410 int ifm_count; /* # entries in ifm_ulist array */ 411 int *ifm_ulist; /* media words */ 412 }; 413 414 #pragma pack() 415 #endif /* !KERNEL || KERNEL_PRIVATE */ 416 417 #endif /* DRIVERKIT */ 418 419 #pragma pack(4) 420 struct ifdrv { 421 char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 422 unsigned long ifd_cmd; 423 size_t ifd_len; /* length of ifd_data buffer */ 424 void *ifd_data; 425 }; 426 #pragma pack() 427 428 #ifndef DRIVERKIT 429 430 /* 431 * Structure used to retrieve aux status data from interfaces. 432 * Kernel suppliers to this interface should respect the formatting 433 * needed by ifconfig(8): each line starts with a TAB and ends with 434 * a newline. 435 */ 436 437 #define IFSTATMAX 800 /* 10 lines of text */ 438 struct ifstat { 439 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 440 char ascii[IFSTATMAX + 1]; 441 }; 442 443 #if !defined(KERNEL) || defined(KERNEL_PRIVATE) 444 /* 445 * Structure used in SIOCGIFCONF request. 446 * Used to retrieve interface configuration 447 * for machine (useful for programs which 448 * must know all networks accessible). 449 */ 450 #pragma pack(4) 451 struct ifconf { 452 int ifc_len; /* size of associated buffer */ 453 union { 454 caddr_t ifcu_buf; 455 struct ifreq *ifcu_req; 456 } ifc_ifcu; 457 }; 458 #pragma pack() 459 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 460 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 461 #endif /* !KERNEL || KERNEL_PRIVATE */ 462 463 /* 464 * DLIL KEV_DL_PROTO_ATTACHED/DETACHED structure 465 */ 466 struct kev_dl_proto_data { 467 struct net_event_data link_data; 468 u_int32_t proto_family; 469 u_int32_t proto_remaining_count; 470 }; 471 472 #ifdef KERNEL 473 #ifdef MALLOC_DECLARE 474 MALLOC_DECLARE(M_IFADDR); 475 #endif 476 #endif 477 #endif /* DRIVERKIT */ 478 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 479 480 #ifndef DRIVERKIT 481 #ifndef KERNEL 482 struct if_nameindex { 483 unsigned int if_index; /* 1, 2, ... */ 484 char *if_name; /* null terminated name: "le0", ... */ 485 }; 486 487 __BEGIN_DECLS 488 unsigned int if_nametoindex(const char *); 489 char *if_indextoname(unsigned int, char *); 490 struct if_nameindex *if_nameindex(void); 491 void if_freenameindex(struct if_nameindex *); 492 __END_DECLS 493 #endif /* KERNEL */ 494 #endif /* DRIVERKIT */ 495 496 #ifdef KERNEL 497 #include <net/kpi_interface.h> 498 #endif 499 500 #ifdef PRIVATE 501 #include <net/if_private.h> 502 #endif /* PRIVATE */ 503 504 #endif /* !_NET_IF_H_ */ 505