1 /* $OpenBSD: if.h,v 1.199 2019/01/23 08:23:18 dlg Exp $ */ 2 /* $NetBSD: if.h,v 1.23 1996/05/07 02:40:27 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)if.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef _NET_IF_H_ 36 #define _NET_IF_H_ 37 38 #include <sys/cdefs.h> 39 40 /* 41 * Length of interface external name, including terminating '\0'. 42 * Note: this is the same size as a generic device's external name. 43 */ 44 #define IF_NAMESIZE 16 45 46 struct if_nameindex { 47 unsigned int if_index; 48 char *if_name; 49 }; 50 51 #ifndef _KERNEL 52 __BEGIN_DECLS 53 unsigned int if_nametoindex(const char *); 54 char *if_indextoname(unsigned int, char *); 55 struct if_nameindex *if_nameindex(void); 56 void if_freenameindex(struct if_nameindex *); 57 __END_DECLS 58 #endif 59 60 #if __BSD_VISIBLE 61 62 #include <sys/types.h> 63 #include <sys/time.h> 64 #include <sys/socket.h> 65 66 /* 67 * Structure used to query names of interface cloners. 68 */ 69 struct if_clonereq { 70 int ifcr_total; /* total cloners (out) */ 71 int ifcr_count; /* room for this many in user buffer */ 72 char *ifcr_buffer; /* buffer for cloner names */ 73 }; 74 75 #define MCLPOOLS 8 /* number of cluster pools */ 76 77 struct if_rxring { 78 int rxr_adjusted; 79 u_int rxr_alive; 80 u_int rxr_cwm; 81 u_int rxr_lwm; 82 u_int rxr_hwm; 83 }; 84 85 struct if_rxring_info { 86 char ifr_name[16]; /* name of the ring */ 87 u_int ifr_size; /* size of the packets on the ring */ 88 struct if_rxring ifr_info; 89 }; 90 91 /* Structure used in SIOCGIFRXR request. */ 92 struct if_rxrinfo { 93 u_int ifri_total; 94 struct if_rxring_info *ifri_entries; 95 }; 96 97 /* 98 * Structure defining statistics and other data kept regarding a network 99 * interface. 100 */ 101 struct if_data { 102 /* generic interface information */ 103 u_char ifi_type; /* ethernet, tokenring, etc. */ 104 u_char ifi_addrlen; /* media address length */ 105 u_char ifi_hdrlen; /* media header length */ 106 u_char ifi_link_state; /* current link state */ 107 u_int32_t ifi_mtu; /* maximum transmission unit */ 108 u_int32_t ifi_metric; /* routing metric (external only) */ 109 u_int32_t ifi_rdomain; /* routing instance */ 110 u_int64_t ifi_baudrate; /* linespeed */ 111 /* volatile statistics */ 112 u_int64_t ifi_ipackets; /* packets received on interface */ 113 u_int64_t ifi_ierrors; /* input errors on interface */ 114 u_int64_t ifi_opackets; /* packets sent on interface */ 115 u_int64_t ifi_oerrors; /* output errors on interface */ 116 u_int64_t ifi_collisions; /* collisions on csma interfaces */ 117 u_int64_t ifi_ibytes; /* total number of octets received */ 118 u_int64_t ifi_obytes; /* total number of octets sent */ 119 u_int64_t ifi_imcasts; /* packets received via multicast */ 120 u_int64_t ifi_omcasts; /* packets sent via multicast */ 121 u_int64_t ifi_iqdrops; /* dropped on input, this interface */ 122 u_int64_t ifi_oqdrops; /* dropped on output, this interface */ 123 u_int64_t ifi_noproto; /* destined for unsupported protocol */ 124 u_int32_t ifi_capabilities; /* interface capabilities */ 125 struct timeval ifi_lastchange; /* last operational state change */ 126 }; 127 128 #define IFQ_NQUEUES 8 129 #define IFQ_MINPRIO 0 130 #define IFQ_MAXPRIO IFQ_NQUEUES - 1 131 #define IFQ_DEFPRIO 3 132 #define IFQ_PRIO2TOS(_p) ((_p) << 5) 133 #define IFQ_TOS2PRIO(_t) ((_t) >> 5) 134 135 /* 136 * Values for if_link_state. 137 */ 138 #define LINK_STATE_UNKNOWN 0 /* link unknown */ 139 #define LINK_STATE_INVALID 1 /* link invalid */ 140 #define LINK_STATE_DOWN 2 /* link is down */ 141 #define LINK_STATE_KALIVE_DOWN 3 /* keepalive reports down */ 142 #define LINK_STATE_UP 4 /* link is up */ 143 #define LINK_STATE_HALF_DUPLEX 5 /* link is up and half duplex */ 144 #define LINK_STATE_FULL_DUPLEX 6 /* link is up and full duplex */ 145 146 #define LINK_STATE_IS_UP(_s) \ 147 ((_s) >= LINK_STATE_UP || (_s) == LINK_STATE_UNKNOWN) 148 149 /* 150 * Status bit descriptions for the various interface types. 151 */ 152 struct if_status_description { 153 u_char ifs_type; 154 u_char ifs_state; 155 const char *ifs_string; 156 }; 157 158 #define LINK_STATE_DESC_MATCH(_ifs, _t, _s) \ 159 (((_ifs)->ifs_type == (_t) || (_ifs)->ifs_type == 0) && \ 160 (_ifs)->ifs_state == (_s)) 161 162 163 #define LINK_STATE_DESCRIPTIONS { \ 164 { IFT_ETHER, LINK_STATE_DOWN, "no carrier" }, \ 165 \ 166 { IFT_IEEE80211, LINK_STATE_DOWN, "no network" }, \ 167 \ 168 { IFT_PPP, LINK_STATE_DOWN, "no carrier" }, \ 169 \ 170 { IFT_CARP, LINK_STATE_DOWN, "backup" }, \ 171 { IFT_CARP, LINK_STATE_UP, "master" }, \ 172 { IFT_CARP, LINK_STATE_HALF_DUPLEX, "master" }, \ 173 { IFT_CARP, LINK_STATE_FULL_DUPLEX, "master" }, \ 174 \ 175 { 0, LINK_STATE_UP, "active" }, \ 176 { 0, LINK_STATE_HALF_DUPLEX, "active" }, \ 177 { 0, LINK_STATE_FULL_DUPLEX, "active" }, \ 178 \ 179 { 0, LINK_STATE_UNKNOWN, "unknown" }, \ 180 { 0, LINK_STATE_INVALID, "invalid" }, \ 181 { 0, LINK_STATE_DOWN, "down" }, \ 182 { 0, LINK_STATE_KALIVE_DOWN, "keepalive down" }, \ 183 { 0, 0, NULL } \ 184 } 185 186 /* Traditional BSD name for length of interface external name. */ 187 #define IFNAMSIZ IF_NAMESIZE 188 189 /* 190 * Length of interface description, including terminating '\0'. 191 */ 192 #define IFDESCRSIZE 64 193 194 /* 195 * Interface flags can be either owned by the stack or the driver. The 196 * symbols below document who is toggling which flag. 197 * 198 * I immutable after creation 199 * N written by the stack (upon user request) 200 * d written by the driver 201 * c for userland compatibility only 202 */ 203 #define IFF_UP 0x1 /* [N] interface is up */ 204 #define IFF_BROADCAST 0x2 /* [I] broadcast address valid */ 205 #define IFF_DEBUG 0x4 /* [N] turn on debugging */ 206 #define IFF_LOOPBACK 0x8 /* [I] is a loopback net */ 207 #define IFF_POINTOPOINT 0x10 /* [I] is point-to-point link */ 208 #define IFF_STATICARP 0x20 /* [N] only static ARP */ 209 #define IFF_RUNNING 0x40 /* [d] resources allocated */ 210 #define IFF_NOARP 0x80 /* [N] no address resolution protocol */ 211 #define IFF_PROMISC 0x100 /* [N] receive all packets */ 212 #define IFF_ALLMULTI 0x200 /* [d] receive all multicast packets */ 213 #define IFF_OACTIVE 0x400 /* [c] transmission in progress */ 214 #define IFF_SIMPLEX 0x800 /* [I] can't hear own transmissions */ 215 #define IFF_LINK0 0x1000 /* [N] per link layer defined bit */ 216 #define IFF_LINK1 0x2000 /* [N] per link layer defined bit */ 217 #define IFF_LINK2 0x4000 /* [N] per link layer defined bit */ 218 #define IFF_MULTICAST 0x8000 /* [I] supports multicast */ 219 220 /* flags set internally only: */ 221 #define IFF_CANTCHANGE \ 222 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\ 223 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI) 224 225 #define IFXF_MPSAFE 0x1 /* [I] if_start is mpsafe */ 226 #define IFXF_CLONED 0x2 /* [I] pseudo interface */ 227 #define IFXF_INET6_NOPRIVACY 0x4 /* [N] don't autoconf privacy */ 228 #define IFXF_MPLS 0x8 /* [N] supports MPLS */ 229 #define IFXF_WOL 0x10 /* [N] wake on lan enabled */ 230 #define IFXF_AUTOCONF6 0x20 /* [N] v6 autoconf enabled */ 231 #define IFXF_INET6_NOSOII 0x40 /* [N] don't do RFC 7217 */ 232 233 #define IFXF_CANTCHANGE \ 234 (IFXF_MPSAFE|IFXF_CLONED) 235 236 /* 237 * Some convenience macros used for setting ifi_baudrate. 238 */ 239 #define IF_Kbps(x) ((x) * 1000ULL) /* kilobits/sec. */ 240 #define IF_Mbps(x) (IF_Kbps((x) * 1000ULL)) /* megabits/sec. */ 241 #define IF_Gbps(x) (IF_Mbps((x) * 1000ULL)) /* gigabits/sec. */ 242 243 /* Capabilities that interfaces can advertise. */ 244 #define IFCAP_CSUM_IPv4 0x00000001 /* can do IPv4 header csum */ 245 #define IFCAP_CSUM_TCPv4 0x00000002 /* can do IPv4/TCP csum */ 246 #define IFCAP_CSUM_UDPv4 0x00000004 /* can do IPv4/UDP csum */ 247 #define IFCAP_VLAN_MTU 0x00000010 /* VLAN-compatible MTU */ 248 #define IFCAP_VLAN_HWTAGGING 0x00000020 /* hardware VLAN tag support */ 249 #define IFCAP_CSUM_TCPv6 0x00000080 /* can do IPv6/TCP checksums */ 250 #define IFCAP_CSUM_UDPv6 0x00000100 /* can do IPv6/UDP checksums */ 251 #define IFCAP_WOL 0x00008000 /* can do wake on lan */ 252 253 #define IFCAP_CSUM_MASK (IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | \ 254 IFCAP_CSUM_UDPv4 | IFCAP_CSUM_TCPv6 | IFCAP_CSUM_UDPv6) 255 256 /* symbolic names for terminal (per-protocol) CTL_IFQ_ nodes */ 257 #define IFQCTL_LEN 1 258 #define IFQCTL_MAXLEN 2 259 #define IFQCTL_DROPS 3 260 #define IFQCTL_CONGESTION 4 261 #define IFQCTL_MAXID 5 262 263 /* sysctl for ifq (per-protocol packet input queue variant of ifqueue) */ 264 #define CTL_IFQ_NAMES { \ 265 { 0, 0 }, \ 266 { "len", CTLTYPE_INT }, \ 267 { "maxlen", CTLTYPE_INT }, \ 268 { "drops", CTLTYPE_INT }, \ 269 { "congestion", CTLTYPE_INT }, \ 270 } 271 272 /* 273 * Message format for use in obtaining information about interfaces 274 * from sysctl and the routing socket. 275 */ 276 struct if_msghdr { 277 u_short ifm_msglen; /* to skip over non-understood messages */ 278 u_char ifm_version; /* future binary compatibility */ 279 u_char ifm_type; /* message type */ 280 u_short ifm_hdrlen; /* sizeof(if_msghdr) to skip over the header */ 281 u_short ifm_index; /* index for associated ifp */ 282 u_short ifm_tableid; /* routing table id */ 283 u_char ifm_pad1; 284 u_char ifm_pad2; 285 int ifm_addrs; /* like rtm_addrs */ 286 int ifm_flags; /* value of if_flags */ 287 int ifm_xflags; 288 struct if_data ifm_data;/* statistics and other data about if */ 289 }; 290 291 /* 292 * Message format for use in obtaining information about interface addresses 293 * from sysctl and the routing socket. 294 */ 295 struct ifa_msghdr { 296 u_short ifam_msglen; /* to skip over non-understood messages */ 297 u_char ifam_version; /* future binary compatibility */ 298 u_char ifam_type; /* message type */ 299 u_short ifam_hdrlen; /* sizeof(ifa_msghdr) to skip over the header */ 300 u_short ifam_index; /* index for associated ifp */ 301 u_short ifam_tableid; /* routing table id */ 302 u_char ifam_pad1; 303 u_char ifam_pad2; 304 int ifam_addrs; /* like rtm_addrs */ 305 int ifam_flags; /* value of ifa_flags */ 306 int ifam_metric; /* value of ifa_metric */ 307 }; 308 309 /* 310 * Message format announcing the arrival or departure of a network interface. 311 */ 312 struct if_announcemsghdr { 313 u_short ifan_msglen; /* to skip over non-understood messages */ 314 u_char ifan_version; /* future binary compatibility */ 315 u_char ifan_type; /* message type */ 316 u_short ifan_hdrlen; /* sizeof(if_announcemsghdr) to skip header */ 317 u_short ifan_index; /* index for associated ifp */ 318 u_short ifan_what; /* what type of announcement */ 319 char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 320 }; 321 322 #define IFAN_ARRIVAL 0 /* interface arrival */ 323 #define IFAN_DEPARTURE 1 /* interface departure */ 324 325 /* message format used to pass 80211 interface info */ 326 struct if_ieee80211_data { 327 uint8_t ifie_channel; /* IEEE80211_CHAN_MAX == 255 */ 328 uint8_t ifie_nwid_len; 329 uint32_t ifie_flags; /* ieee80211com.ic_flags */ 330 uint32_t ifie_xflags; /* ieee80211com.ic xflags */ 331 uint8_t ifie_nwid[32]; /* IEEE80211_NWID_LEN */ 332 uint8_t ifie_addr[6]; /* IEEE80211_ADDR_LEN */ 333 }; 334 335 struct if_ieee80211_msghdr { 336 uint16_t ifim_msglen; 337 uint8_t ifim_version; 338 uint8_t ifim_type; 339 uint16_t ifim_hdrlen; 340 uint16_t ifim_index; 341 uint16_t ifim_tableid; 342 343 struct if_ieee80211_data ifim_ifie; 344 }; 345 346 /* message format used to pass interface name to index mappings */ 347 struct if_nameindex_msg { 348 unsigned int if_index; 349 char if_name[IFNAMSIZ]; 350 }; 351 352 /* 353 * interface groups 354 */ 355 356 #define IFG_ALL "all" /* group contains all interfaces */ 357 #define IFG_EGRESS "egress" /* if(s) default route(s) point to */ 358 359 struct ifg_req { 360 union { 361 char ifgrqu_group[IFNAMSIZ]; 362 char ifgrqu_member[IFNAMSIZ]; 363 } ifgrq_ifgrqu; 364 #define ifgrq_group ifgrq_ifgrqu.ifgrqu_group 365 #define ifgrq_member ifgrq_ifgrqu.ifgrqu_member 366 }; 367 368 struct ifg_attrib { 369 int ifg_carp_demoted; 370 }; 371 372 /* 373 * Used to lookup groups for an interface 374 */ 375 struct ifgroupreq { 376 char ifgr_name[IFNAMSIZ]; 377 u_int ifgr_len; 378 union { 379 char ifgru_group[IFNAMSIZ]; 380 struct ifg_req *ifgru_groups; 381 struct ifg_attrib ifgru_attrib; 382 } ifgr_ifgru; 383 #define ifgr_group ifgr_ifgru.ifgru_group 384 #define ifgr_groups ifgr_ifgru.ifgru_groups 385 #define ifgr_attrib ifgr_ifgru.ifgru_attrib 386 }; 387 388 /* 389 * Interface request structure used for socket 390 * ioctl's. All interface ioctl's must have parameter 391 * definitions which begin with ifr_name. The 392 * remainder may be interface specific. 393 */ 394 struct ifreq { 395 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 396 union { 397 struct sockaddr ifru_addr; 398 struct sockaddr ifru_dstaddr; 399 struct sockaddr ifru_broadaddr; 400 short ifru_flags; 401 int ifru_metric; 402 int64_t ifru_vnetid; 403 uint64_t ifru_media; 404 caddr_t ifru_data; 405 unsigned int ifru_index; 406 } ifr_ifru; 407 #define ifr_addr ifr_ifru.ifru_addr /* address */ 408 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 409 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 410 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 411 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 412 #define ifr_mtu ifr_ifru.ifru_metric /* mtu (overload) */ 413 #define ifr_hardmtu ifr_ifru.ifru_metric /* hardmtu (overload) */ 414 #define ifr_media ifr_ifru.ifru_media /* media options */ 415 #define ifr_rdomainid ifr_ifru.ifru_metric /* VRF instance (overload) */ 416 #define ifr_vnetid ifr_ifru.ifru_vnetid /* Virtual Net Id */ 417 #define ifr_ttl ifr_ifru.ifru_metric /* tunnel TTL (overload) */ 418 #define ifr_df ifr_ifru.ifru_metric /* tunnel DF (overload) */ 419 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 420 #define ifr_index ifr_ifru.ifru_index /* interface index */ 421 #define ifr_llprio ifr_ifru.ifru_metric /* link layer priority */ 422 #define ifr_hdrprio ifr_ifru.ifru_metric /* header prio field config */ 423 #define ifr_pwe3 ifr_ifru.ifru_metric /* PWE3 type */ 424 }; 425 426 #define IF_HDRPRIO_MIN IFQ_MINPRIO 427 #define IF_HDRPRIO_MAX IFQ_MAXPRIO 428 #define IF_HDRPRIO_PACKET -1 /* use mbuf prio */ 429 #define IF_HDRPRIO_PAYLOAD -2 /* copy payload prio */ 430 431 #define IF_PWE3_ETHERNET 1 /* ethernet or ethernet tagged */ 432 #define IF_PWE3_IP 2 /* IP layer 2 */ 433 434 struct ifaliasreq { 435 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 436 union { 437 struct sockaddr ifrau_addr; 438 int ifrau_align; 439 } ifra_ifrau; 440 #ifndef ifra_addr 441 #define ifra_addr ifra_ifrau.ifrau_addr 442 #endif 443 struct sockaddr ifra_dstaddr; 444 #define ifra_broadaddr ifra_dstaddr 445 struct sockaddr ifra_mask; 446 }; 447 448 struct ifmediareq { 449 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 450 uint64_t ifm_current; /* get/set current media options */ 451 uint64_t ifm_mask; /* don't care mask */ 452 uint64_t ifm_status; /* media status */ 453 uint64_t ifm_active; /* active options */ 454 int ifm_count; /* # entries in ifm_ulist array */ 455 uint64_t *ifm_ulist; /* media words */ 456 }; 457 458 struct ifkalivereq { 459 char ikar_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 460 int ikar_timeo; 461 int ikar_cnt; 462 }; 463 464 /* 465 * Structure used in SIOCGIFCONF request. 466 * Used to retrieve interface configuration 467 * for machine (useful for programs which 468 * must know all networks accessible). 469 */ 470 struct ifconf { 471 int ifc_len; /* size of associated buffer */ 472 union { 473 caddr_t ifcu_buf; 474 struct ifreq *ifcu_req; 475 } ifc_ifcu; 476 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 477 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 478 }; 479 480 /* 481 * Structure for SIOC[AGD]LIFADDR 482 */ 483 struct if_laddrreq { 484 char iflr_name[IFNAMSIZ]; 485 unsigned int flags; 486 #define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */ 487 unsigned int prefixlen; /* in/out */ 488 struct sockaddr_storage addr; /* in/out */ 489 struct sockaddr_storage dstaddr; /* out */ 490 }; 491 492 /* SIOCIFAFDETACH */ 493 struct if_afreq { 494 char ifar_name[IFNAMSIZ]; 495 sa_family_t ifar_af; 496 }; 497 498 /* SIOC[SG]IFPARENT */ 499 struct if_parent { 500 char ifp_name[IFNAMSIZ]; 501 char ifp_parent[IFNAMSIZ]; 502 }; 503 504 #include <net/if_arp.h> 505 506 #ifdef _KERNEL 507 struct socket; 508 struct ifnet; 509 struct ifq_ops; 510 511 void if_alloc_sadl(struct ifnet *); 512 void if_free_sadl(struct ifnet *); 513 void if_attach(struct ifnet *); 514 void if_attach_queues(struct ifnet *, unsigned int); 515 void if_attach_iqueues(struct ifnet *, unsigned int); 516 void if_attach_ifq(struct ifnet *, const struct ifq_ops *, void *); 517 void if_attachtail(struct ifnet *); 518 void if_attachhead(struct ifnet *); 519 void if_deactivate(struct ifnet *); 520 void if_detach(struct ifnet *); 521 void if_down(struct ifnet *); 522 void if_downall(void); 523 void if_link_state_change(struct ifnet *); 524 void if_up(struct ifnet *); 525 void if_getdata(struct ifnet *, struct if_data *); 526 void ifinit(void); 527 int ifioctl(struct socket *, u_long, caddr_t, struct proc *); 528 int ifpromisc(struct ifnet *, int); 529 struct ifg_group *if_creategroup(const char *); 530 int if_addgroup(struct ifnet *, const char *); 531 int if_delgroup(struct ifnet *, const char *); 532 void if_group_routechange(struct sockaddr *, struct sockaddr *); 533 struct ifnet *ifunit(const char *); 534 struct ifnet *if_get(unsigned int); 535 void if_put(struct ifnet *); 536 void ifnewlladdr(struct ifnet *); 537 void if_congestion(void); 538 int if_congested(void); 539 __dead void unhandled_af(int); 540 int if_setlladdr(struct ifnet *, const uint8_t *); 541 struct taskq * net_tq(unsigned int); 542 543 #endif /* _KERNEL */ 544 545 #endif /* __BSD_VISIBLE */ 546 547 #endif /* _NET_IF_H_ */ 548