1 /* 2 * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved. 3 */ 4 5 /* 6 * Copyright (c) 1982, 1986 Regents of the University of California. 7 * All rights reserved. The Berkeley software License Agreement 8 * specifies the terms and conditions for redistribution. 9 */ 10 11 #ifndef _NET_IF_H 12 #define _NET_IF_H 13 14 /* if.h 1.26 90/05/29 SMI; from UCB 7.1 6/4/86 */ 15 16 #include <sys/feature_tests.h> 17 18 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 19 #include <sys/socket.h> 20 #include <netinet/in.h> 21 #if defined(_LP64) 22 #include <sys/types32.h> 23 #endif 24 #endif 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 /* 31 * Structures defining a network interface, providing a packet 32 * transport mechanism (ala level 0 of the PUP protocols). 33 * 34 * Each interface accepts output datagrams of a specified maximum 35 * length, and provides higher level routines with input datagrams 36 * received from its medium. 37 * 38 * Output occurs when the routine if_output is called, with three parameters: 39 * (*ifp->if_output)(ifp, m, dst) 40 * Here m is the mbuf chain to be sent and dst is the destination address. 41 * The output routine encapsulates the supplied datagram if necessary, 42 * and then transmits it on its medium. 43 * 44 * On input, each interface unwraps the data received by it, and either 45 * places it on the input queue of a internetwork datagram routine 46 * and posts the associated software interrupt, or passes the datagram to a raw 47 * packet input routine. 48 * 49 * Routines exist for locating interfaces by their addresses 50 * or for locating a interface on a certain network, as well as more general 51 * routing and gateway routines maintaining information used to locate 52 * interfaces. These routines live in the files if.c and route.c 53 */ 54 55 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 56 57 /* 58 * Structure defining a queue for a network interface. 59 * 60 * (Would like to call this struct ``if'', but C isn't PL/1.) 61 */ 62 struct ifnet { 63 char *if_name; /* name, e.g. ``en'' or ``lo'' */ 64 short if_unit; /* sub-unit for lower level driver */ 65 short if_mtu; /* maximum transmission unit */ 66 short if_flags; /* up/down, broadcast, etc. */ 67 short if_timer; /* time 'til if_watchdog called */ 68 ushort_t if_promisc; /* net # of requests for promisc mode */ 69 int if_metric; /* routing metric (external only) */ 70 struct ifaddr *if_addrlist; /* linked list of addresses per if */ 71 struct ifqueue { 72 struct mbuf *ifq_head; 73 struct mbuf *ifq_tail; 74 int ifq_len; 75 int ifq_maxlen; 76 int ifq_drops; 77 } if_snd; /* output queue */ 78 /* procedure handles */ 79 int (*if_init)(); /* init routine */ 80 int (*if_output)(); /* output routine */ 81 int (*if_ioctl)(); /* ioctl routine */ 82 int (*if_reset)(); /* bus reset routine */ 83 int (*if_watchdog)(); /* timer routine */ 84 /* generic interface statistics */ 85 int if_ipackets; /* packets received on interface */ 86 int if_ierrors; /* input errors on interface */ 87 int if_opackets; /* packets sent on interface */ 88 int if_oerrors; /* output errors on interface */ 89 int if_collisions; /* collisions on csma interfaces */ 90 /* end statistics */ 91 struct ifnet *if_next; 92 struct ifnet *if_upper; /* next layer up */ 93 struct ifnet *if_lower; /* next layer down */ 94 int (*if_input)(); /* input routine */ 95 int (*if_ctlin)(); /* control input routine */ 96 int (*if_ctlout)(); /* control output routine */ 97 struct map *if_memmap; /* rmap for interface specific memory */ 98 }; 99 100 /* 101 * NOTE : These flags are not directly used within IP. 102 * ip_if.h has definitions derived from this which is used within IP. 103 * If you define a flag here, you need to define one in ip_if.h before 104 * using the new flag in IP. Don't use these flags directly in IP. 105 */ 106 #define IFF_UP 0x0000000001 /* address is up */ 107 #define IFF_BROADCAST 0x0000000002 /* broadcast address valid */ 108 #define IFF_DEBUG 0x0000000004 /* turn on debugging */ 109 #define IFF_LOOPBACK 0x0000000008 /* is a loopback net */ 110 111 #define IFF_POINTOPOINT 0x0000000010 /* interface is point-to-point link */ 112 #define IFF_NOTRAILERS 0x0000000020 /* avoid use of trailers */ 113 #define IFF_RUNNING 0x0000000040 /* resources allocated */ 114 #define IFF_NOARP 0x0000000080 /* no address resolution protocol */ 115 116 #define IFF_PROMISC 0x0000000100 /* receive all packets */ 117 #define IFF_ALLMULTI 0x0000000200 /* receive all multicast packets */ 118 #define IFF_INTELLIGENT 0x0000000400 /* protocol code on board */ 119 /* 120 * The IFF_MULTICAST flag indicates that the network can support the 121 * transmission and reception of higher-level (e.g., IP) multicast packets. 122 * It is independent of hardware support for multicasting; for example, 123 * point-to-point links or pure broadcast networks may well support 124 * higher-level multicasts. 125 */ 126 #define IFF_MULTICAST 0x0000000800 /* supports multicast */ 127 128 #define IFF_MULTI_BCAST 0x0000001000 /* multicast using broadcast address */ 129 #define IFF_UNNUMBERED 0x0000002000 /* non-unique address */ 130 #define IFF_DHCPRUNNING 0x0000004000 /* DHCP controls this interface */ 131 #define IFF_PRIVATE 0x0000008000 /* do not advertise */ 132 133 /* 134 * The following flags can't be grabbed or altered by SIOC[GS]IFFLAGS. 135 * Should use SIOC[GS]LIFFLAGS which has a larger flags field. 136 */ 137 #define IFF_NOXMIT 0x0000010000 /* Do not transmit packets */ 138 #define IFF_NOLOCAL 0x0000020000 /* No address - just on-link subnet */ 139 #define IFF_DEPRECATED 0x0000040000 /* Address is deprecated */ 140 #define IFF_ADDRCONF 0x0000080000 /* address from stateless addrconf */ 141 142 #define IFF_ROUTER 0x0000100000 /* router on this interface */ 143 #define IFF_NONUD 0x0000200000 /* No NUD on this interface */ 144 #define IFF_ANYCAST 0x0000400000 /* Anycast address */ 145 #define IFF_NORTEXCH 0x0000800000 /* Do not exchange routing info */ 146 147 #define IFF_IPV4 0x0001000000 /* IPv4 interface */ 148 #define IFF_IPV6 0x0002000000 /* IPv6 interface */ 149 #define IFF_NOACCEPT 0x0004000000 /* no-accept mode VRRP ill */ 150 #define IFF_NOFAILOVER 0x0008000000 /* in.mpathd(1M) test address */ 151 152 #define IFF_FAILED 0x0010000000 /* Interface has failed */ 153 #define IFF_STANDBY 0x0020000000 /* Interface is a hot-spare */ 154 #define IFF_INACTIVE 0x0040000000 /* Functioning but not used for data */ 155 #define IFF_OFFLINE 0x0080000000 /* Interface is offline */ 156 157 /* 158 * The IFF_XRESOLV flag is an evolving interface and is subject 159 * to change without notice. 160 */ 161 #define IFF_XRESOLV 0x0100000000ll /* IPv6 external resolver */ 162 #define IFF_COS_ENABLED 0x0200000000ll /* If interface supports CoS marking */ 163 #define IFF_PREFERRED 0x0400000000ll /* Prefer as source address */ 164 #define IFF_TEMPORARY 0x0800000000ll /* RFC3041 */ 165 166 #define IFF_FIXEDMTU 0x1000000000ll /* MTU manually set with SIOCSLIFMTU */ 167 #define IFF_VIRTUAL 0x2000000000ll /* Does not send or receive packets */ 168 #define IFF_DUPLICATE 0x4000000000ll /* Local address already in use */ 169 #define IFF_IPMP 0x8000000000ll /* IPMP IP interface */ 170 #define IFF_VRRP 0x10000000000ll /* Managed by VRRP */ 171 172 #define IFF_NOLINKLOCAL 0x20000000000ll /* No default linklocal */ 173 #define IFF_L3PROTECT 0x40000000000ll /* Layer-3 protection enforced */ 174 175 /* flags that cannot be changed by userland on any interface */ 176 #define IFF_CANTCHANGE \ 177 (IFF_BROADCAST | IFF_POINTOPOINT | IFF_RUNNING | IFF_PROMISC | \ 178 IFF_MULTICAST | IFF_MULTI_BCAST | IFF_UNNUMBERED | IFF_IPV4 | \ 179 IFF_IPV6 | IFF_IPMP | IFF_FIXEDMTU | IFF_VIRTUAL | \ 180 IFF_LOOPBACK | IFF_ALLMULTI | IFF_DUPLICATE | IFF_COS_ENABLED | \ 181 IFF_VRRP | IFF_NOLINKLOCAL | IFF_L3PROTECT) 182 183 /* flags that cannot be changed by userland on an IPMP interface */ 184 #define IFF_IPMP_CANTCHANGE IFF_FAILED 185 186 /* flags that can never be set on an IPMP interface */ 187 #define IFF_IPMP_INVALID (IFF_STANDBY | IFF_INACTIVE | IFF_OFFLINE | \ 188 IFF_NOFAILOVER | IFF_NOARP | IFF_NONUD | IFF_XRESOLV | IFF_NOACCEPT) 189 190 /* 191 * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1) 192 * input routines have queues of messages stored on ifqueue structures 193 * (defined above). Entries are added to and deleted from these structures 194 * by these macros, which should be called with ipl raised to splimp(). 195 */ 196 #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen) 197 #define IF_DROP(ifq) ((ifq)->ifq_drops++) 198 #define IF_ENQUEUE(ifq, m) { \ 199 (m)->m_act = 0; \ 200 if ((ifq)->ifq_tail == 0) \ 201 (ifq)->ifq_head = m; \ 202 else \ 203 (ifq)->ifq_tail->m_act = m; \ 204 (ifq)->ifq_tail = m; \ 205 (ifq)->ifq_len++; \ 206 } 207 #define IF_PREPEND(ifq, m) { \ 208 (m)->m_act = (ifq)->ifq_head; \ 209 if ((ifq)->ifq_tail == 0) \ 210 (ifq)->ifq_tail = (m); \ 211 (ifq)->ifq_head = (m); \ 212 (ifq)->ifq_len++; \ 213 } 214 215 /* 216 * Packets destined for level-1 protocol input routines 217 * have a pointer to the receiving interface prepended to the data. 218 * IF_DEQUEUEIF extracts and returns this pointer when dequeuing the packet. 219 * IF_ADJ should be used otherwise to adjust for its presence. 220 */ 221 #define IF_ADJ(m) { \ 222 (m)->m_off += sizeof (struct ifnet *); \ 223 (m)->m_len -= sizeof (struct ifnet *); \ 224 if ((m)->m_len == 0) { \ 225 struct mbuf *n; \ 226 MFREE((m), n); \ 227 (m) = n; \ 228 } \ 229 } 230 #define IF_DEQUEUEIF(ifq, m, ifp) { \ 231 (m) = (ifq)->ifq_head; \ 232 if (m) { \ 233 if (((ifq)->ifq_head = (m)->m_act) == 0) \ 234 (ifq)->ifq_tail = 0; \ 235 (m)->m_act = 0; \ 236 (ifq)->ifq_len--; \ 237 (ifp) = *(mtod((m), struct ifnet **)); \ 238 IF_ADJ(m); \ 239 } \ 240 } 241 #define IF_DEQUEUE(ifq, m) { \ 242 (m) = (ifq)->ifq_head; \ 243 if (m) { \ 244 if (((ifq)->ifq_head = (m)->m_act) == 0) \ 245 (ifq)->ifq_tail = 0; \ 246 (m)->m_act = 0; \ 247 (ifq)->ifq_len--; \ 248 } \ 249 } 250 251 #define IFQ_MAXLEN 50 252 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 253 254 /* 255 * The ifaddr structure contains information about one address 256 * of an interface. They are maintained by the different address families, 257 * are allocated and attached when an address is set, and are linked 258 * together so all addresses for an interface can be located. 259 */ 260 struct ifaddr { 261 struct sockaddr ifa_addr; /* address of interface */ 262 union { 263 struct sockaddr ifu_broadaddr; 264 struct sockaddr ifu_dstaddr; 265 } ifa_ifu; 266 #define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */ 267 #define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of p-to-p link */ 268 struct ifnet *ifa_ifp; /* back-pointer to interface */ 269 struct ifaddr *ifa_next; /* next address for interface */ 270 }; 271 272 /* 273 * For SIOCLIF*ND ioctls. 274 * 275 * The lnr_state_* fields use the ND_* neighbor reachability states. 276 * The 3 different fields are for use with SIOCLIFSETND to cover the cases 277 * when 278 * A new entry is created 279 * The entry already exists and the link-layer address is the same 280 * The entry already exists and the link-layer address differs 281 * 282 * Use ND_UNCHANGED and ND_ISROUTER_UNCHANGED to not change any state. 283 */ 284 #define ND_MAX_HDW_LEN 64 285 typedef struct lif_nd_req { 286 struct sockaddr_storage lnr_addr; 287 uint8_t lnr_state_create; /* When creating */ 288 uint8_t lnr_state_same_lla; /* Update same addr */ 289 uint8_t lnr_state_diff_lla; /* Update w/ diff. */ 290 int lnr_hdw_len; 291 int lnr_flags; /* See below */ 292 /* padding because ia32 "long long"s are only 4-byte aligned. */ 293 int lnr_pad0; 294 char lnr_hdw_addr[ND_MAX_HDW_LEN]; 295 } lif_nd_req_t; 296 297 /* 298 * Neighbor reachability states 299 * Used with SIOCLIF*ND ioctls. 300 */ 301 #define ND_UNCHANGED 0 /* For ioctls that don't modify state */ 302 #define ND_INCOMPLETE 1 /* addr resolution in progress */ 303 #define ND_REACHABLE 2 /* have recently been reachable */ 304 #define ND_STALE 3 /* may be unreachable, don't do anything */ 305 #define ND_DELAY 4 /* wait for upper layer hint */ 306 #define ND_PROBE 5 /* send probes */ 307 #define ND_UNREACHABLE 6 /* delete this route */ 308 #define ND_INITIAL 7 /* ipv4: arp resolution has not been sent yet */ 309 310 #define ND_STATE_VALID_MIN 0 311 #define ND_STATE_VALID_MAX 7 312 313 /* 314 * lnr_flags value of lif_nd_req. 315 * Used with SIOCLIF*ND ioctls. 316 */ 317 #define NDF_ISROUTER_ON 0x1 318 #define NDF_ISROUTER_OFF 0x2 319 #define NDF_ANYCAST_ON 0x4 320 #define NDF_ANYCAST_OFF 0x8 321 #define NDF_PROXY_ON 0x10 322 #define NDF_PROXY_OFF 0x20 323 /* 324 * the NDF_STATIC entry ensures that an NCE will not be deleted, and is 325 * used by non-ON applications like IPv6 test suites. 326 */ 327 #define NDF_STATIC 0x40 328 329 /* For SIOC[GS]LIFLNKINFO */ 330 typedef struct lif_ifinfo_req { 331 uint8_t lir_maxhops; 332 uint32_t lir_reachtime; /* Reachable time in msec */ 333 uint32_t lir_reachretrans; /* Retransmission timer msec */ 334 uint32_t lir_maxmtu; 335 } lif_ifinfo_req_t; 336 337 #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ 338 339 /* 340 * Maximum lengths of interface name and IPMP group name; these are the same 341 * for historical reasons. Note that the actual maximum length of a name is 342 * one byte less than these constants since the kernel always sets the final 343 * byte of lifr_name and lifr_groupname to NUL. 344 */ 345 #define _LIFNAMSIZ 32 346 347 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) 348 349 #define LIFNAMSIZ _LIFNAMSIZ 350 #define LIFGRNAMSIZ LIFNAMSIZ 351 352 /* 353 * Interface request structure used for socket 354 * ioctl's. All interface ioctl's must have parameter 355 * definitions which begin with ifr_name. The 356 * remainder may be interface specific. 357 * Note: This data structure uses 64bit type uint64_t which is not 358 * a valid type for strict ANSI/ISO C compilation for ILP32. 359 * Applications with ioctls using this structure that insist on 360 * building with strict ANSI/ISO C (-Xc) will need to be LP64. 361 */ 362 #if defined(_INT64_TYPE) 363 struct lifreq { 364 char lifr_name[LIFNAMSIZ]; /* if name, e.g. "en0" */ 365 union { 366 int lifru_addrlen; /* for subnet/token etc */ 367 uint_t lifru_ppa; /* SIOCSLIFNAME */ 368 } lifr_lifru1; 369 #define lifr_addrlen lifr_lifru1.lifru_addrlen 370 #define lifr_ppa lifr_lifru1.lifru_ppa /* Driver's ppa */ 371 uint_t lifr_type; /* IFT_ETHER, ... */ 372 union { 373 struct sockaddr_storage lifru_addr; 374 struct sockaddr_storage lifru_dstaddr; 375 struct sockaddr_storage lifru_broadaddr; 376 struct sockaddr_storage lifru_token; /* With lifr_addrlen */ 377 struct sockaddr_storage lifru_subnet; /* With lifr_addrlen */ 378 int lifru_index; /* interface index */ 379 uint64_t lifru_flags; /* Flags for SIOC?LIFFLAGS */ 380 int lifru_metric; 381 uint_t lifru_mtu; 382 int lif_muxid[2]; /* mux id's for arp and ip */ 383 struct lif_nd_req lifru_nd_req; 384 struct lif_ifinfo_req lifru_ifinfo_req; 385 char lifru_groupname[LIFGRNAMSIZ]; /* SIOC[GS]LIFGROUPNAME */ 386 char lifru_binding[LIFNAMSIZ]; /* SIOCGLIFBINDING */ 387 zoneid_t lifru_zoneid; /* SIOC[GS]LIFZONE */ 388 uint_t lifru_dadstate; /* SIOCGLIFDADSTATE */ 389 } lifr_lifru; 390 391 #define lifr_addr lifr_lifru.lifru_addr /* address */ 392 #define lifr_dstaddr lifr_lifru.lifru_dstaddr /* other end of p-to-p link */ 393 #define lifr_broadaddr lifr_lifru.lifru_broadaddr /* broadcast address */ 394 #define lifr_token lifr_lifru.lifru_token /* address token */ 395 #define lifr_subnet lifr_lifru.lifru_subnet /* subnet prefix */ 396 #define lifr_index lifr_lifru.lifru_index /* interface index */ 397 #define lifr_flags lifr_lifru.lifru_flags /* flags */ 398 #define lifr_metric lifr_lifru.lifru_metric /* metric */ 399 #define lifr_mtu lifr_lifru.lifru_mtu /* mtu */ 400 #define lifr_ip_muxid lifr_lifru.lif_muxid[0] 401 #define lifr_arp_muxid lifr_lifru.lif_muxid[1] 402 #define lifr_nd lifr_lifru.lifru_nd_req /* SIOCLIF*ND */ 403 #define lifr_ifinfo lifr_lifru.lifru_ifinfo_req /* SIOC[GS]LIFLNKINFO */ 404 #define lifr_groupname lifr_lifru.lifru_groupname 405 #define lifr_binding lifr_lifru.lifru_binding 406 #define lifr_zoneid lifr_lifru.lifru_zoneid 407 #define lifr_dadstate lifr_lifru.lifru_dadstate 408 }; 409 #endif /* defined(_INT64_TYPE) */ 410 411 /* 412 * Argument structure for SIOCT* address testing ioctls. 413 */ 414 struct sioc_addrreq { 415 struct sockaddr_storage sa_addr; /* Address to test */ 416 int sa_res; /* Result - 0/1 */ 417 int sa_pad; 418 }; 419 420 /* 421 * Argument structure used by mrouted to get src-grp pkt counts using 422 * SIOCGETLSGCNT. See <netinet/ip_mroute.h>. 423 */ 424 struct sioc_lsg_req { 425 struct sockaddr_storage slr_src; 426 struct sockaddr_storage slr_grp; 427 uint_t slr_pktcnt; 428 uint_t slr_bytecnt; 429 uint_t slr_wrong_if; 430 uint_t slr_pad; 431 }; 432 433 /* Argument structure for SIOCGLIFDADSTATE ioctl */ 434 typedef enum { 435 DAD_IN_PROGRESS = 0x1, 436 DAD_DONE = 0x2 437 } glif_dad_state_t; 438 439 /* 440 * OBSOLETE: Replaced by struct lifreq. Supported for compatibility. 441 * 442 * Interface request structure used for socket 443 * ioctl's. All interface ioctl's must have parameter 444 * definitions which begin with ifr_name. The 445 * remainder may be interface specific. 446 */ 447 struct ifreq { 448 #define IFNAMSIZ 16 449 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 450 union { 451 struct sockaddr ifru_addr; 452 struct sockaddr ifru_dstaddr; 453 char ifru_oname[IFNAMSIZ]; /* other if name */ 454 struct sockaddr ifru_broadaddr; 455 int ifru_index; /* interface index */ 456 uint_t ifru_mtu; 457 short ifru_flags; 458 int ifru_metric; 459 char ifru_data[1]; /* interface dependent data */ 460 char ifru_enaddr[6]; 461 int if_muxid[2]; /* mux id's for arp and ip */ 462 463 /* Struct for flags/ppa */ 464 struct ifr_ppaflags { 465 short ifrup_flags; /* Space of ifru_flags. */ 466 short ifrup_filler; 467 uint_t ifrup_ppa; 468 } ifru_ppaflags; 469 470 /* Struct for FDDI ioctl's */ 471 struct ifr_dnld_reqs { 472 uint32_t v_addr; 473 uint32_t m_addr; 474 uint32_t ex_addr; 475 uint32_t size; 476 } ifru_dnld_req; 477 478 /* Struct for FDDI stats */ 479 struct ifr_fddi_stats { 480 uint32_t stat_size; 481 uint32_t fddi_stats; 482 } ifru_fddi_stat; 483 484 struct ifr_netmapents { 485 uint32_t map_ent_size, /* size of netmap structure */ 486 entry_number; /* index into netmap list */ 487 uint32_t fddi_map_ent; /* pointer to user structure */ 488 } ifru_netmapent; 489 490 /* Field for generic ioctl for fddi */ 491 492 struct ifr_fddi_gen_struct { 493 uint32_t ifru_fddi_gioctl; /* field for gen ioctl */ 494 uint32_t ifru_fddi_gaddr; /* Generic ptr to a field */ 495 } ifru_fddi_gstruct; 496 497 } ifr_ifru; 498 499 #define ifr_addr ifr_ifru.ifru_addr /* address */ 500 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 501 #define ifr_oname ifr_ifru.ifru_oname /* other if name */ 502 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 503 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 504 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 505 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 506 #define ifr_enaddr ifr_ifru.ifru_enaddr /* ethernet address */ 507 #define ifr_index ifr_ifru.ifru_index /* interface index */ 508 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 509 /* For setting ppa */ 510 #define ifr_ppa ifr_ifru.ifru_ppaflags.ifrup_ppa 511 512 /* FDDI specific */ 513 #define ifr_dnld_req ifr_ifru.ifru_dnld_req 514 #define ifr_fddi_stat ifr_ifru.ifru_fddi_stat 515 #define ifr_fddi_netmap ifr_ifru.ifru_netmapent /* FDDI network map entries */ 516 #define ifr_fddi_gstruct ifr_ifru.ifru_fddi_gstruct 517 518 #define ifr_ip_muxid ifr_ifru.if_muxid[0] 519 #define ifr_arp_muxid ifr_ifru.if_muxid[1] 520 }; 521 522 /* Used by SIOCGLIFNUM. Uses same flags as in struct lifconf */ 523 struct lifnum { 524 sa_family_t lifn_family; 525 int lifn_flags; /* request specific interfaces */ 526 int lifn_count; /* Result */ 527 }; 528 529 /* 530 * Structure used in SIOCGLIFCONF request. 531 * Used to retrieve interface configuration 532 * for machine (useful for programs which 533 * must know all networks accessible) for a given address family. 534 * Using AF_UNSPEC will retrieve all address families. 535 */ 536 struct lifconf { 537 sa_family_t lifc_family; 538 int lifc_flags; /* request specific interfaces */ 539 int lifc_len; /* size of associated buffer */ 540 union { 541 caddr_t lifcu_buf; 542 struct lifreq *lifcu_req; 543 } lifc_lifcu; 544 #define lifc_buf lifc_lifcu.lifcu_buf /* buffer address */ 545 #define lifc_req lifc_lifcu.lifcu_req /* array of structures returned */ 546 }; 547 548 /* 549 * Structure used in SIOCGLIFSRCOF to get the interface 550 * configuration list for those interfaces that use an address 551 * hosted on the interface (set in lifs_ifindex), as the source 552 * address. 553 */ 554 struct lifsrcof { 555 uint_t lifs_ifindex; /* interface of interest */ 556 size_t lifs_maxlen; /* size of buffer: input */ 557 size_t lifs_len; /* size of buffer: output */ 558 union { 559 caddr_t lifsu_buf; 560 struct lifreq *lifsu_req; 561 } lifs_lifsu; 562 #define lifs_buf lifs_lifsu.lifsu_buf /* buffer address */ 563 #define lifs_req lifs_lifsu.lifsu_req /* array returned */ 564 }; 565 566 /* Flags */ 567 #define LIFC_NOXMIT 0x01 /* Include IFF_NOXMIT interfaces */ 568 #define LIFC_EXTERNAL_SOURCE 0x02 /* Exclude the interfaces which can't */ 569 /* be used to communicate outside the */ 570 /* node (exclude interfaces which are */ 571 /* IFF_NOXMIT, IFF_NOLOCAL, */ 572 /* IFF_LOOPBACK, IFF_DEPRECATED, or */ 573 /* not IFF_UP). Has priority over */ 574 /* LIFC_NOXMIT. */ 575 #define LIFC_TEMPORARY 0x04 /* Include IFF_TEMPORARY interfaces */ 576 #define LIFC_ALLZONES 0x08 /* Include all zones */ 577 /* (must be issued from global zone) */ 578 #define LIFC_UNDER_IPMP 0x10 /* Include underlying IPMP interfaces */ 579 #define LIFC_ENABLED 0x20 /* Include only IFF_UP interfaces */ 580 581 #if defined(_SYSCALL32) 582 583 struct lifconf32 { 584 sa_family_t lifc_family; 585 int lifc_flags; /* request specific interfaces */ 586 int32_t lifc_len; /* size of associated buffer */ 587 union { 588 caddr32_t lifcu_buf; 589 caddr32_t lifcu_req; 590 } lifc_lifcu; 591 }; 592 593 struct lifsrcof32 { 594 uint_t lifs_ifindex; /* interface of interest */ 595 size32_t lifs_maxlen; /* size of buffer: input */ 596 size32_t lifs_len; /* size of buffer: output */ 597 union { 598 caddr32_t lifsu_buf; 599 caddr32_t lifsu_req; 600 } lifs_lifsu; 601 }; 602 603 #endif /* _SYSCALL32 */ 604 605 /* 606 * IPMP group information, for use with SIOCGLIFGROUPINFO. 607 */ 608 typedef struct lifgroupinfo { 609 char gi_grname[LIFGRNAMSIZ]; /* group name (set by caller) */ 610 char gi_grifname[LIFNAMSIZ]; /* IPMP meta-interface name */ 611 char gi_m4ifname[LIFNAMSIZ]; /* v4 mcast interface name */ 612 char gi_m6ifname[LIFNAMSIZ]; /* v6 mcast interface name */ 613 char gi_bcifname[LIFNAMSIZ]; /* v4 bcast interface name */ 614 boolean_t gi_v4; /* group is plumbed for v4 */ 615 boolean_t gi_v6; /* group is plumbed for v6 */ 616 uint_t gi_nv4; /* # of underlying v4 if's */ 617 uint_t gi_nv6; /* # of underlying v6 if's */ 618 uint_t gi_mactype; /* DLPI mac type of group */ 619 } lifgroupinfo_t; 620 621 /* 622 * OBSOLETE: Structure used in SIOCGIFCONF request. 623 * Used to retrieve interface configuration 624 * for machine (useful for programs which 625 * must know all networks accessible). 626 */ 627 struct ifconf { 628 int ifc_len; /* size of associated buffer */ 629 union { 630 caddr_t ifcu_buf; 631 struct ifreq *ifcu_req; 632 } ifc_ifcu; 633 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 634 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 635 }; 636 637 #if defined(_SYSCALL32) 638 639 struct ifconf32 { 640 int32_t ifc_len; /* size of associated buffer */ 641 union { 642 caddr32_t ifcu_buf; 643 caddr32_t ifcu_req; 644 } ifc_ifcu; 645 }; 646 647 #endif /* _SYSCALL32 */ 648 649 typedef struct if_data { 650 /* generic interface information */ 651 uchar_t ifi_type; /* ethernet, tokenring, etc */ 652 uchar_t ifi_addrlen; /* media address length */ 653 uchar_t ifi_hdrlen; /* media header length */ 654 uint_t ifi_mtu; /* maximum transmission unit */ 655 uint_t ifi_metric; /* routing metric (external only) */ 656 uint_t ifi_baudrate; /* linespeed */ 657 /* volatile statistics */ 658 uint_t ifi_ipackets; /* packets received on interface */ 659 uint_t ifi_ierrors; /* input errors on interface */ 660 uint_t ifi_opackets; /* packets sent on interface */ 661 uint_t ifi_oerrors; /* output errors on interface */ 662 uint_t ifi_collisions; /* collisions on csma interfaces */ 663 uint_t ifi_ibytes; /* total number of octets received */ 664 uint_t ifi_obytes; /* total number of octets sent */ 665 uint_t ifi_imcasts; /* packets received via multicast */ 666 uint_t ifi_omcasts; /* packets sent via multicast */ 667 uint_t ifi_iqdrops; /* dropped on input, this interface */ 668 uint_t ifi_noproto; /* destined for unsupported protocol */ 669 #if defined(_LP64) 670 struct timeval32 ifi_lastchange; /* last updated */ 671 #else 672 struct timeval ifi_lastchange; /* last updated */ 673 #endif 674 } if_data_t; 675 676 /* 677 * Message format for use in obtaining information about interfaces 678 * from the routing socket 679 */ 680 typedef struct if_msghdr { 681 ushort_t ifm_msglen; /* to skip over non-understood messages */ 682 uchar_t ifm_version; /* future binary compatibility */ 683 uchar_t ifm_type; /* message type */ 684 int ifm_addrs; /* like rtm_addrs */ 685 int ifm_flags; /* value of if_flags */ 686 ushort_t ifm_index; /* index for associated ifp */ 687 struct if_data ifm_data; /* statistics and other data about if */ 688 } if_msghdr_t; 689 690 /* 691 * Message format for use in obtaining information about interface addresses 692 * from the routing socket 693 */ 694 typedef struct ifa_msghdr { 695 ushort_t ifam_msglen; /* to skip over non-understood messages */ 696 uchar_t ifam_version; /* future binary compatibility */ 697 uchar_t ifam_type; /* message type */ 698 int ifam_addrs; /* like rtm_addrs */ 699 int ifam_flags; /* route flags */ 700 ushort_t ifam_index; /* index for associated ifp */ 701 int ifam_metric; /* value of ipif_metric */ 702 } ifa_msghdr_t; 703 704 #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ 705 706 /* 707 * The if_nameindex structure holds the interface index value about 708 * a single interface. An array of this structure is used to return 709 * all interfaces and indexes. 710 */ 711 struct if_nameindex { 712 unsigned if_index; /* positive interface index */ 713 char *if_name; /* if name, e.g. "en0" */ 714 }; 715 716 /* Interface index identification API definitions */ 717 extern unsigned if_nametoindex(const char *); 718 extern char *if_indextoname(unsigned, char *); 719 extern struct if_nameindex *if_nameindex(void); 720 extern void if_freenameindex(struct if_nameindex *); 721 722 #define IF_NAMESIZE _LIFNAMSIZ 723 /* 724 * If changing IF_MAX_INDEX to a value greater than UINT16_MAX, check if 725 * struct sockaddr_dl needs to be modified as the interface index is placed 726 * in this structure by the kernel. 727 */ 728 #define IF_INDEX_MAX UINT16_MAX 729 730 #ifdef __cplusplus 731 } 732 #endif 733 734 #endif /* _NET_IF_H */ 735