1 /* 2 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 1982, 1986 Regents of the University of California. 8 * All rights reserved. The Berkeley software License Agreement 9 * specifies the terms and conditions for redistribution. 10 */ 11 12 #ifndef _NET_IF_H 13 #define _NET_IF_H 14 15 /* if.h 1.26 90/05/29 SMI; from UCB 7.1 6/4/86 */ 16 17 #include <sys/feature_tests.h> 18 19 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 20 #include <sys/socket.h> 21 #include <netinet/in.h> 22 #if defined(_LP64) 23 #include <sys/types32.h> 24 #endif 25 #endif 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 /* 32 * Structures defining a network interface, providing a packet 33 * transport mechanism (ala level 0 of the PUP protocols). 34 * 35 * Each interface accepts output datagrams of a specified maximum 36 * length, and provides higher level routines with input datagrams 37 * received from its medium. 38 * 39 * Output occurs when the routine if_output is called, with three parameters: 40 * (*ifp->if_output)(ifp, m, dst) 41 * Here m is the mbuf chain to be sent and dst is the destination address. 42 * The output routine encapsulates the supplied datagram if necessary, 43 * and then transmits it on its medium. 44 * 45 * On input, each interface unwraps the data received by it, and either 46 * places it on the input queue of a internetwork datagram routine 47 * and posts the associated software interrupt, or passes the datagram to a raw 48 * packet input routine. 49 * 50 * Routines exist for locating interfaces by their addresses 51 * or for locating a interface on a certain network, as well as more general 52 * routing and gateway routines maintaining information used to locate 53 * interfaces. These routines live in the files if.c and route.c 54 */ 55 56 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 57 58 /* 59 * Structure defining a queue for a network interface. 60 * 61 * (Would like to call this struct ``if'', but C isn't PL/1.) 62 */ 63 struct ifnet { 64 char *if_name; /* name, e.g. ``en'' or ``lo'' */ 65 short if_unit; /* sub-unit for lower level driver */ 66 short if_mtu; /* maximum transmission unit */ 67 short if_flags; /* up/down, broadcast, etc. */ 68 short if_timer; /* time 'til if_watchdog called */ 69 ushort_t if_promisc; /* net # of requests for promisc mode */ 70 int if_metric; /* routing metric (external only) */ 71 struct ifaddr *if_addrlist; /* linked list of addresses per if */ 72 struct ifqueue { 73 struct mbuf *ifq_head; 74 struct mbuf *ifq_tail; 75 int ifq_len; 76 int ifq_maxlen; 77 int ifq_drops; 78 } if_snd; /* output queue */ 79 /* procedure handles */ 80 int (*if_init)(); /* init routine */ 81 int (*if_output)(); /* output routine */ 82 int (*if_ioctl)(); /* ioctl routine */ 83 int (*if_reset)(); /* bus reset routine */ 84 int (*if_watchdog)(); /* timer routine */ 85 /* generic interface statistics */ 86 int if_ipackets; /* packets received on interface */ 87 int if_ierrors; /* input errors on interface */ 88 int if_opackets; /* packets sent on interface */ 89 int if_oerrors; /* output errors on interface */ 90 int if_collisions; /* collisions on csma interfaces */ 91 /* end statistics */ 92 struct ifnet *if_next; 93 struct ifnet *if_upper; /* next layer up */ 94 struct ifnet *if_lower; /* next layer down */ 95 int (*if_input)(); /* input routine */ 96 int (*if_ctlin)(); /* control input routine */ 97 int (*if_ctlout)(); /* control output routine */ 98 struct map *if_memmap; /* rmap for interface specific memory */ 99 }; 100 101 /* 102 * NOTE : These flags are not directly used within IP. 103 * ip_if.h has definitions derived from this which is used within IP. 104 * If you define a flag here, you need to define one in ip_if.h before 105 * using the new flag in IP. Don't use these flags directly in IP. 106 */ 107 #define IFF_UP 0x0000000001 /* address is up */ 108 #define IFF_BROADCAST 0x0000000002 /* broadcast address valid */ 109 #define IFF_DEBUG 0x0000000004 /* turn on debugging */ 110 #define IFF_LOOPBACK 0x0000000008 /* is a loopback net */ 111 112 #define IFF_POINTOPOINT 0x0000000010 /* interface is point-to-point link */ 113 #define IFF_NOTRAILERS 0x0000000020 /* avoid use of trailers */ 114 #define IFF_RUNNING 0x0000000040 /* resources allocated */ 115 #define IFF_NOARP 0x0000000080 /* no address resolution protocol */ 116 117 #define IFF_PROMISC 0x0000000100 /* receive all packets */ 118 #define IFF_ALLMULTI 0x0000000200 /* receive all multicast packets */ 119 #define IFF_INTELLIGENT 0x0000000400 /* protocol code on board */ 120 /* 121 * The IFF_MULTICAST flag indicates that the network can support the 122 * transmission and reception of higher-level (e.g., IP) multicast packets. 123 * It is independent of hardware support for multicasting; for example, 124 * point-to-point links or pure broadcast networks may well support 125 * higher-level multicasts. 126 */ 127 #define IFF_MULTICAST 0x0000000800 /* supports multicast */ 128 129 #define IFF_MULTI_BCAST 0x0000001000 /* multicast using broadcast address */ 130 #define IFF_UNNUMBERED 0x0000002000 /* non-unique address */ 131 #define IFF_DHCPRUNNING 0x0000004000 /* DHCP controls this interface */ 132 #define IFF_PRIVATE 0x0000008000 /* do not advertise */ 133 134 /* 135 * The following flags can't be grabbed or altered by SIOC[GS]IFFLAGS. 136 * Should use SIOC[GS]LIFFLAGS which has a larger flags field. 137 */ 138 #define IFF_NOXMIT 0x0000010000 /* Do not transmit packets */ 139 #define IFF_NOLOCAL 0x0000020000 /* No address - just on-link subnet */ 140 #define IFF_DEPRECATED 0x0000040000 /* Address is deprecated */ 141 #define IFF_ADDRCONF 0x0000080000 /* address from stateless addrconf */ 142 143 #define IFF_ROUTER 0x0000100000 /* router on this interface */ 144 #define IFF_NONUD 0x0000200000 /* No NUD on this interface */ 145 #define IFF_ANYCAST 0x0000400000 /* Anycast address */ 146 #define IFF_NORTEXCH 0x0000800000 /* Do not exchange routing info */ 147 148 #define IFF_IPV4 0x0001000000 /* IPv4 interface */ 149 #define IFF_IPV6 0x0002000000 /* IPv6 interface */ 150 #define IFF_NOACCEPT 0x0004000000 /* no-accept mode VRRP ill */ 151 #define IFF_NOFAILOVER 0x0008000000 /* in.mpathd(1M) test address */ 152 153 #define IFF_FAILED 0x0010000000 /* Interface has failed */ 154 #define IFF_STANDBY 0x0020000000 /* Interface is a hot-spare */ 155 #define IFF_INACTIVE 0x0040000000 /* Functioning but not used for data */ 156 #define IFF_OFFLINE 0x0080000000 /* Interface is offline */ 157 158 /* 159 * The IFF_XRESOLV flag is an evolving interface and is subject 160 * to change without notice. 161 */ 162 #define IFF_XRESOLV 0x0100000000ll /* IPv6 external resolver */ 163 #define IFF_COS_ENABLED 0x0200000000ll /* If interface supports CoS marking */ 164 #define IFF_PREFERRED 0x0400000000ll /* Prefer as source address */ 165 #define IFF_TEMPORARY 0x0800000000ll /* RFC3041 */ 166 167 #define IFF_FIXEDMTU 0x1000000000ll /* MTU manually set with SIOCSLIFMTU */ 168 #define IFF_VIRTUAL 0x2000000000ll /* Does not send or receive packets */ 169 #define IFF_DUPLICATE 0x4000000000ll /* Local address already in use */ 170 #define IFF_IPMP 0x8000000000ll /* IPMP IP interface */ 171 #define IFF_VRRP 0x10000000000ll /* Managed by VRRP */ 172 173 /* flags that cannot be changed by userland on any interface */ 174 #define IFF_CANTCHANGE \ 175 (IFF_BROADCAST | IFF_POINTOPOINT | IFF_RUNNING | IFF_PROMISC | \ 176 IFF_MULTICAST | IFF_MULTI_BCAST | IFF_UNNUMBERED | IFF_IPV4 | \ 177 IFF_IPV6 | IFF_IPMP | IFF_FIXEDMTU | IFF_VIRTUAL | \ 178 IFF_LOOPBACK | IFF_ALLMULTI | IFF_DUPLICATE | IFF_COS_ENABLED | \ 179 IFF_VRRP) 180 181 /* flags that cannot be changed by userland on an IPMP interface */ 182 #define IFF_IPMP_CANTCHANGE IFF_FAILED 183 184 /* flags that can never be set on an IPMP interface */ 185 #define IFF_IPMP_INVALID (IFF_STANDBY | IFF_INACTIVE | IFF_OFFLINE | \ 186 IFF_NOFAILOVER | IFF_NOARP | IFF_NONUD | IFF_XRESOLV | IFF_NOACCEPT) 187 188 /* 189 * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1) 190 * input routines have queues of messages stored on ifqueue structures 191 * (defined above). Entries are added to and deleted from these structures 192 * by these macros, which should be called with ipl raised to splimp(). 193 */ 194 #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen) 195 #define IF_DROP(ifq) ((ifq)->ifq_drops++) 196 #define IF_ENQUEUE(ifq, m) { \ 197 (m)->m_act = 0; \ 198 if ((ifq)->ifq_tail == 0) \ 199 (ifq)->ifq_head = m; \ 200 else \ 201 (ifq)->ifq_tail->m_act = m; \ 202 (ifq)->ifq_tail = m; \ 203 (ifq)->ifq_len++; \ 204 } 205 #define IF_PREPEND(ifq, m) { \ 206 (m)->m_act = (ifq)->ifq_head; \ 207 if ((ifq)->ifq_tail == 0) \ 208 (ifq)->ifq_tail = (m); \ 209 (ifq)->ifq_head = (m); \ 210 (ifq)->ifq_len++; \ 211 } 212 213 /* 214 * Packets destined for level-1 protocol input routines 215 * have a pointer to the receiving interface prepended to the data. 216 * IF_DEQUEUEIF extracts and returns this pointer when dequeuing the packet. 217 * IF_ADJ should be used otherwise to adjust for its presence. 218 */ 219 #define IF_ADJ(m) { \ 220 (m)->m_off += sizeof (struct ifnet *); \ 221 (m)->m_len -= sizeof (struct ifnet *); \ 222 if ((m)->m_len == 0) { \ 223 struct mbuf *n; \ 224 MFREE((m), n); \ 225 (m) = n; \ 226 } \ 227 } 228 #define IF_DEQUEUEIF(ifq, m, ifp) { \ 229 (m) = (ifq)->ifq_head; \ 230 if (m) { \ 231 if (((ifq)->ifq_head = (m)->m_act) == 0) \ 232 (ifq)->ifq_tail = 0; \ 233 (m)->m_act = 0; \ 234 (ifq)->ifq_len--; \ 235 (ifp) = *(mtod((m), struct ifnet **)); \ 236 IF_ADJ(m); \ 237 } \ 238 } 239 #define IF_DEQUEUE(ifq, m) { \ 240 (m) = (ifq)->ifq_head; \ 241 if (m) { \ 242 if (((ifq)->ifq_head = (m)->m_act) == 0) \ 243 (ifq)->ifq_tail = 0; \ 244 (m)->m_act = 0; \ 245 (ifq)->ifq_len--; \ 246 } \ 247 } 248 249 #define IFQ_MAXLEN 50 250 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 251 252 /* 253 * The ifaddr structure contains information about one address 254 * of an interface. They are maintained by the different address families, 255 * are allocated and attached when an address is set, and are linked 256 * together so all addresses for an interface can be located. 257 */ 258 struct ifaddr { 259 struct sockaddr ifa_addr; /* address of interface */ 260 union { 261 struct sockaddr ifu_broadaddr; 262 struct sockaddr ifu_dstaddr; 263 } ifa_ifu; 264 #define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */ 265 #define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of p-to-p link */ 266 struct ifnet *ifa_ifp; /* back-pointer to interface */ 267 struct ifaddr *ifa_next; /* next address for interface */ 268 }; 269 270 /* 271 * For SIOCLIF*ND ioctls. 272 * 273 * The lnr_state_* fields use the ND_* neighbor reachability states. 274 * The 3 different fields are for use with SIOCLIFSETND to cover the cases 275 * when 276 * A new entry is created 277 * The entry already exists and the link-layer address is the same 278 * The entry already exists and the link-layer address differs 279 * 280 * Use ND_UNCHANGED and ND_ISROUTER_UNCHANGED to not change any state. 281 */ 282 #define ND_MAX_HDW_LEN 64 283 typedef struct lif_nd_req { 284 struct sockaddr_storage lnr_addr; 285 uint8_t lnr_state_create; /* When creating */ 286 uint8_t lnr_state_same_lla; /* Update same addr */ 287 uint8_t lnr_state_diff_lla; /* Update w/ diff. */ 288 int lnr_hdw_len; 289 int lnr_flags; /* See below */ 290 /* padding because ia32 "long long"s are only 4-byte aligned. */ 291 int lnr_pad0; 292 char lnr_hdw_addr[ND_MAX_HDW_LEN]; 293 } lif_nd_req_t; 294 295 /* 296 * Neighbor reachability states 297 * Used with SIOCLIF*ND ioctls. 298 */ 299 #define ND_UNCHANGED 0 /* For ioctls that don't modify state */ 300 #define ND_INCOMPLETE 1 /* addr resolution in progress */ 301 #define ND_REACHABLE 2 /* have recently been reachable */ 302 #define ND_STALE 3 /* may be unreachable, don't do anything */ 303 #define ND_DELAY 4 /* wait for upper layer hint */ 304 #define ND_PROBE 5 /* send probes */ 305 #define ND_UNREACHABLE 6 /* delete this route */ 306 #define ND_INITIAL 7 /* ipv4: arp resolution has not been sent yet */ 307 308 #define ND_STATE_VALID_MIN 0 309 #define ND_STATE_VALID_MAX 7 310 311 /* 312 * lnr_flags value of lif_nd_req. 313 * Used with SIOCLIF*ND ioctls. 314 */ 315 #define NDF_ISROUTER_ON 0x1 316 #define NDF_ISROUTER_OFF 0x2 317 #define NDF_ANYCAST_ON 0x4 318 #define NDF_ANYCAST_OFF 0x8 319 #define NDF_PROXY_ON 0x10 320 #define NDF_PROXY_OFF 0x20 321 322 /* For SIOC[GS]LIFLNKINFO */ 323 typedef struct lif_ifinfo_req { 324 uint8_t lir_maxhops; 325 uint32_t lir_reachtime; /* Reachable time in msec */ 326 uint32_t lir_reachretrans; /* Retransmission timer msec */ 327 uint32_t lir_maxmtu; 328 } lif_ifinfo_req_t; 329 330 #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ 331 332 /* 333 * Maximum lengths of interface name and IPMP group name; these are the same 334 * for historical reasons. Note that the actual maximum length of a name is 335 * one byte less than these constants since the kernel always sets the final 336 * byte of lifr_name and lifr_groupname to NUL. 337 */ 338 #define _LIFNAMSIZ 32 339 340 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 341 342 #define LIFNAMSIZ _LIFNAMSIZ 343 #define LIFGRNAMSIZ LIFNAMSIZ 344 345 /* 346 * Interface request structure used for socket 347 * ioctl's. All interface ioctl's must have parameter 348 * definitions which begin with ifr_name. The 349 * remainder may be interface specific. 350 * Note: This data structure uses 64bit type uint64_t which is not 351 * a valid type for strict ANSI/ISO C compilation for ILP32. 352 * Applications with ioctls using this structure that insist on 353 * building with strict ANSI/ISO C (-Xc) will need to be LP64. 354 */ 355 #if defined(_INT64_TYPE) 356 struct lifreq { 357 char lifr_name[LIFNAMSIZ]; /* if name, e.g. "en0" */ 358 union { 359 int lifru_addrlen; /* for subnet/token etc */ 360 uint_t lifru_ppa; /* SIOCSLIFNAME */ 361 } lifr_lifru1; 362 #define lifr_addrlen lifr_lifru1.lifru_addrlen 363 #define lifr_ppa lifr_lifru1.lifru_ppa /* Driver's ppa */ 364 uint_t lifr_type; /* IFT_ETHER, ... */ 365 union { 366 struct sockaddr_storage lifru_addr; 367 struct sockaddr_storage lifru_dstaddr; 368 struct sockaddr_storage lifru_broadaddr; 369 struct sockaddr_storage lifru_token; /* With lifr_addrlen */ 370 struct sockaddr_storage lifru_subnet; /* With lifr_addrlen */ 371 int lifru_index; /* interface index */ 372 uint64_t lifru_flags; /* Flags for SIOC?LIFFLAGS */ 373 int lifru_metric; 374 uint_t lifru_mtu; 375 int lif_muxid[2]; /* mux id's for arp and ip */ 376 struct lif_nd_req lifru_nd_req; 377 struct lif_ifinfo_req lifru_ifinfo_req; 378 char lifru_groupname[LIFGRNAMSIZ]; /* SIOC[GS]LIFGROUPNAME */ 379 char lifru_binding[LIFNAMSIZ]; /* SIOCGLIFBINDING */ 380 zoneid_t lifru_zoneid; /* SIOC[GS]LIFZONE */ 381 } lifr_lifru; 382 383 #define lifr_addr lifr_lifru.lifru_addr /* address */ 384 #define lifr_dstaddr lifr_lifru.lifru_dstaddr /* other end of p-to-p link */ 385 #define lifr_broadaddr lifr_lifru.lifru_broadaddr /* broadcast address */ 386 #define lifr_token lifr_lifru.lifru_token /* address token */ 387 #define lifr_subnet lifr_lifru.lifru_subnet /* subnet prefix */ 388 #define lifr_index lifr_lifru.lifru_index /* interface index */ 389 #define lifr_flags lifr_lifru.lifru_flags /* flags */ 390 #define lifr_metric lifr_lifru.lifru_metric /* metric */ 391 #define lifr_mtu lifr_lifru.lifru_mtu /* mtu */ 392 #define lifr_ip_muxid lifr_lifru.lif_muxid[0] 393 #define lifr_arp_muxid lifr_lifru.lif_muxid[1] 394 #define lifr_nd lifr_lifru.lifru_nd_req /* SIOCLIF*ND */ 395 #define lifr_ifinfo lifr_lifru.lifru_ifinfo_req /* SIOC[GS]LIFLNKINFO */ 396 #define lifr_groupname lifr_lifru.lifru_groupname 397 #define lifr_binding lifr_lifru.lifru_binding 398 #define lifr_zoneid lifr_lifru.lifru_zoneid 399 }; 400 #endif /* defined(_INT64_TYPE) */ 401 402 /* 403 * Argument structure for SIOCT* address testing ioctls. 404 */ 405 struct sioc_addrreq { 406 struct sockaddr_storage sa_addr; /* Address to test */ 407 int sa_res; /* Result - 0/1 */ 408 int sa_pad; 409 }; 410 411 /* 412 * Argument structure used by mrouted to get src-grp pkt counts using 413 * SIOCGETLSGCNT. See <netinet/ip_mroute.h>. 414 */ 415 struct sioc_lsg_req { 416 struct sockaddr_storage slr_src; 417 struct sockaddr_storage slr_grp; 418 uint_t slr_pktcnt; 419 uint_t slr_bytecnt; 420 uint_t slr_wrong_if; 421 uint_t slr_pad; 422 }; 423 424 /* 425 * OBSOLETE: Replaced by struct lifreq. Supported for compatibility. 426 * 427 * Interface request structure used for socket 428 * ioctl's. All interface ioctl's must have parameter 429 * definitions which begin with ifr_name. The 430 * remainder may be interface specific. 431 */ 432 struct ifreq { 433 #define IFNAMSIZ 16 434 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 435 union { 436 struct sockaddr ifru_addr; 437 struct sockaddr ifru_dstaddr; 438 char ifru_oname[IFNAMSIZ]; /* other if name */ 439 struct sockaddr ifru_broadaddr; 440 int ifru_index; /* interface index */ 441 uint_t ifru_mtu; 442 short ifru_flags; 443 int ifru_metric; 444 char ifru_data[1]; /* interface dependent data */ 445 char ifru_enaddr[6]; 446 int if_muxid[2]; /* mux id's for arp and ip */ 447 448 /* Struct for flags/ppa */ 449 struct ifr_ppaflags { 450 short ifrup_flags; /* Space of ifru_flags. */ 451 short ifrup_filler; 452 uint_t ifrup_ppa; 453 } ifru_ppaflags; 454 455 /* Struct for FDDI ioctl's */ 456 struct ifr_dnld_reqs { 457 uint32_t v_addr; 458 uint32_t m_addr; 459 uint32_t ex_addr; 460 uint32_t size; 461 } ifru_dnld_req; 462 463 /* Struct for FDDI stats */ 464 struct ifr_fddi_stats { 465 uint32_t stat_size; 466 uint32_t fddi_stats; 467 } ifru_fddi_stat; 468 469 struct ifr_netmapents { 470 uint32_t map_ent_size, /* size of netmap structure */ 471 entry_number; /* index into netmap list */ 472 uint32_t fddi_map_ent; /* pointer to user structure */ 473 } ifru_netmapent; 474 475 /* Field for generic ioctl for fddi */ 476 477 struct ifr_fddi_gen_struct { 478 uint32_t ifru_fddi_gioctl; /* field for gen ioctl */ 479 uint32_t ifru_fddi_gaddr; /* Generic ptr to a field */ 480 } ifru_fddi_gstruct; 481 482 } ifr_ifru; 483 484 #define ifr_addr ifr_ifru.ifru_addr /* address */ 485 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 486 #define ifr_oname ifr_ifru.ifru_oname /* other if name */ 487 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 488 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 489 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 490 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 491 #define ifr_enaddr ifr_ifru.ifru_enaddr /* ethernet address */ 492 #define ifr_index ifr_ifru.ifru_index /* interface index */ 493 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 494 /* For setting ppa */ 495 #define ifr_ppa ifr_ifru.ifru_ppaflags.ifrup_ppa 496 497 /* FDDI specific */ 498 #define ifr_dnld_req ifr_ifru.ifru_dnld_req 499 #define ifr_fddi_stat ifr_ifru.ifru_fddi_stat 500 #define ifr_fddi_netmap ifr_ifru.ifru_netmapent /* FDDI network map entries */ 501 #define ifr_fddi_gstruct ifr_ifru.ifru_fddi_gstruct 502 503 #define ifr_ip_muxid ifr_ifru.if_muxid[0] 504 #define ifr_arp_muxid ifr_ifru.if_muxid[1] 505 }; 506 507 /* Used by SIOCGLIFNUM. Uses same flags as in struct lifconf */ 508 struct lifnum { 509 sa_family_t lifn_family; 510 int lifn_flags; /* request specific interfaces */ 511 int lifn_count; /* Result */ 512 }; 513 514 /* 515 * Structure used in SIOCGLIFCONF request. 516 * Used to retrieve interface configuration 517 * for machine (useful for programs which 518 * must know all networks accessible) for a given address family. 519 * Using AF_UNSPEC will retrieve all address families. 520 */ 521 struct lifconf { 522 sa_family_t lifc_family; 523 int lifc_flags; /* request specific interfaces */ 524 int lifc_len; /* size of associated buffer */ 525 union { 526 caddr_t lifcu_buf; 527 struct lifreq *lifcu_req; 528 } lifc_lifcu; 529 #define lifc_buf lifc_lifcu.lifcu_buf /* buffer address */ 530 #define lifc_req lifc_lifcu.lifcu_req /* array of structures returned */ 531 }; 532 533 /* 534 * Structure used in SIOCGLIFSRCOF to get the interface 535 * configuration list for those interfaces that use an address 536 * hosted on the interface (set in lifs_ifindex), as the source 537 * address. 538 */ 539 struct lifsrcof { 540 uint_t lifs_ifindex; /* interface of interest */ 541 size_t lifs_maxlen; /* size of buffer: input */ 542 size_t lifs_len; /* size of buffer: output */ 543 union { 544 caddr_t lifsu_buf; 545 struct lifreq *lifsu_req; 546 } lifs_lifsu; 547 #define lifs_buf lifs_lifsu.lifsu_buf /* buffer address */ 548 #define lifs_req lifs_lifsu.lifsu_req /* array returned */ 549 }; 550 551 /* Flags */ 552 #define LIFC_NOXMIT 0x01 /* Include IFF_NOXMIT interfaces */ 553 #define LIFC_EXTERNAL_SOURCE 0x02 /* Exclude the interfaces which can't */ 554 /* be used to communicate outside the */ 555 /* node (exclude interfaces which are */ 556 /* IFF_NOXMIT, IFF_NOLOCAL, */ 557 /* IFF_LOOPBACK, IFF_DEPRECATED, or */ 558 /* not IFF_UP). Has priority over */ 559 /* LIFC_NOXMIT. */ 560 #define LIFC_TEMPORARY 0x04 /* Include IFF_TEMPORARY interfaces */ 561 #define LIFC_ALLZONES 0x08 /* Include all zones */ 562 /* (must be issued from global zone) */ 563 #define LIFC_UNDER_IPMP 0x10 /* Include underlying IPMP interfaces */ 564 565 #if defined(_SYSCALL32) 566 567 struct lifconf32 { 568 sa_family_t lifc_family; 569 int lifc_flags; /* request specific interfaces */ 570 int32_t lifc_len; /* size of associated buffer */ 571 union { 572 caddr32_t lifcu_buf; 573 caddr32_t lifcu_req; 574 } lifc_lifcu; 575 }; 576 577 struct lifsrcof32 { 578 uint_t lifs_ifindex; /* interface of interest */ 579 size32_t lifs_maxlen; /* size of buffer: input */ 580 size32_t lifs_len; /* size of buffer: output */ 581 union { 582 caddr32_t lifsu_buf; 583 caddr32_t lifsu_req; 584 } lifs_lifsu; 585 }; 586 587 #endif /* _SYSCALL32 */ 588 589 /* 590 * IPMP group information, for use with SIOCGLIFGROUPINFO. 591 */ 592 typedef struct lifgroupinfo { 593 char gi_grname[LIFGRNAMSIZ]; /* group name (set by caller) */ 594 char gi_grifname[LIFNAMSIZ]; /* IPMP meta-interface name */ 595 char gi_m4ifname[LIFNAMSIZ]; /* v4 mcast interface name */ 596 char gi_m6ifname[LIFNAMSIZ]; /* v6 mcast interface name */ 597 char gi_bcifname[LIFNAMSIZ]; /* v4 bcast interface name */ 598 boolean_t gi_v4; /* group is plumbed for v4 */ 599 boolean_t gi_v6; /* group is plumbed for v6 */ 600 uint_t gi_nv4; /* # of underlying v4 if's */ 601 uint_t gi_nv6; /* # of underlying v6 if's */ 602 uint_t gi_mactype; /* DLPI mac type of group */ 603 } lifgroupinfo_t; 604 605 /* 606 * OBSOLETE: Structure used in SIOCGIFCONF request. 607 * Used to retrieve interface configuration 608 * for machine (useful for programs which 609 * must know all networks accessible). 610 */ 611 struct ifconf { 612 int ifc_len; /* size of associated buffer */ 613 union { 614 caddr_t ifcu_buf; 615 struct ifreq *ifcu_req; 616 } ifc_ifcu; 617 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 618 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 619 }; 620 621 #if defined(_SYSCALL32) 622 623 struct ifconf32 { 624 int32_t ifc_len; /* size of associated buffer */ 625 union { 626 caddr32_t ifcu_buf; 627 caddr32_t ifcu_req; 628 } ifc_ifcu; 629 }; 630 631 #endif /* _SYSCALL32 */ 632 633 typedef struct if_data { 634 /* generic interface information */ 635 uchar_t ifi_type; /* ethernet, tokenring, etc */ 636 uchar_t ifi_addrlen; /* media address length */ 637 uchar_t ifi_hdrlen; /* media header length */ 638 uint_t ifi_mtu; /* maximum transmission unit */ 639 uint_t ifi_metric; /* routing metric (external only) */ 640 uint_t ifi_baudrate; /* linespeed */ 641 /* volatile statistics */ 642 uint_t ifi_ipackets; /* packets received on interface */ 643 uint_t ifi_ierrors; /* input errors on interface */ 644 uint_t ifi_opackets; /* packets sent on interface */ 645 uint_t ifi_oerrors; /* output errors on interface */ 646 uint_t ifi_collisions; /* collisions on csma interfaces */ 647 uint_t ifi_ibytes; /* total number of octets received */ 648 uint_t ifi_obytes; /* total number of octets sent */ 649 uint_t ifi_imcasts; /* packets received via multicast */ 650 uint_t ifi_omcasts; /* packets sent via multicast */ 651 uint_t ifi_iqdrops; /* dropped on input, this interface */ 652 uint_t ifi_noproto; /* destined for unsupported protocol */ 653 #if defined(_LP64) 654 struct timeval32 ifi_lastchange; /* last updated */ 655 #else 656 struct timeval ifi_lastchange; /* last updated */ 657 #endif 658 } if_data_t; 659 660 /* 661 * Message format for use in obtaining information about interfaces 662 * from the routing socket 663 */ 664 typedef struct if_msghdr { 665 ushort_t ifm_msglen; /* to skip over non-understood messages */ 666 uchar_t ifm_version; /* future binary compatibility */ 667 uchar_t ifm_type; /* message type */ 668 int ifm_addrs; /* like rtm_addrs */ 669 int ifm_flags; /* value of if_flags */ 670 ushort_t ifm_index; /* index for associated ifp */ 671 struct if_data ifm_data; /* statistics and other data about if */ 672 } if_msghdr_t; 673 674 /* 675 * Message format for use in obtaining information about interface addresses 676 * from the routing socket 677 */ 678 typedef struct ifa_msghdr { 679 ushort_t ifam_msglen; /* to skip over non-understood messages */ 680 uchar_t ifam_version; /* future binary compatibility */ 681 uchar_t ifam_type; /* message type */ 682 int ifam_addrs; /* like rtm_addrs */ 683 int ifam_flags; /* route flags */ 684 ushort_t ifam_index; /* index for associated ifp */ 685 int ifam_metric; /* value of ipif_metric */ 686 } ifa_msghdr_t; 687 688 #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ 689 690 /* 691 * The if_nameindex structure holds the interface index value about 692 * a single interface. An array of this structure is used to return 693 * all interfaces and indexes. 694 */ 695 struct if_nameindex { 696 unsigned if_index; /* positive interface index */ 697 char *if_name; /* if name, e.g. "en0" */ 698 }; 699 700 /* Interface index identification API definitions */ 701 extern unsigned if_nametoindex(const char *); 702 extern char *if_indextoname(unsigned, char *); 703 extern struct if_nameindex *if_nameindex(void); 704 extern void if_freenameindex(struct if_nameindex *); 705 706 #define IF_NAMESIZE _LIFNAMSIZ 707 708 #ifdef __cplusplus 709 } 710 #endif 711 712 #endif /* _NET_IF_H */ 713