if_var.h revision 270874
1/*- 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * From: @(#)if.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD: head/sys/net/if_var.h 270874 2014-08-31 11:33:19Z glebius $ 31 */ 32 33#ifndef _NET_IF_VAR_H_ 34#define _NET_IF_VAR_H_ 35 36/* 37 * Structures defining a network interface, providing a packet 38 * transport mechanism (ala level 0 of the PUP protocols). 39 * 40 * Each interface accepts output datagrams of a specified maximum 41 * length, and provides higher level routines with input datagrams 42 * received from its medium. 43 * 44 * Output occurs when the routine if_output is called, with three parameters: 45 * (*ifp->if_output)(ifp, m, dst, rt) 46 * Here m is the mbuf chain to be sent and dst is the destination address. 47 * The output routine encapsulates the supplied datagram if necessary, 48 * and then transmits it on its medium. 49 * 50 * On input, each interface unwraps the data received by it, and either 51 * places it on the input queue of an internetwork datagram routine 52 * and posts the associated software interrupt, or passes the datagram to a raw 53 * packet input routine. 54 * 55 * Routines exist for locating interfaces by their addresses 56 * or for locating an interface on a certain network, as well as more general 57 * routing and gateway routines maintaining information used to locate 58 * interfaces. These routines live in the files if.c and route.c 59 */ 60 61struct rtentry; /* ifa_rtrequest */ 62struct rt_addrinfo; /* ifa_rtrequest */ 63struct socket; 64struct carp_if; 65struct carp_softc; 66struct ifvlantrunk; 67struct route; /* if_output */ 68struct vnet; 69struct ifmedia; 70struct netmap_adapter; 71 72#ifdef _KERNEL 73#include <sys/mbuf.h> /* ifqueue only? */ 74#include <sys/buf_ring.h> 75#include <net/vnet.h> 76#endif /* _KERNEL */ 77#include <sys/counter.h> 78#include <sys/lock.h> /* XXX */ 79#include <sys/mutex.h> /* struct ifqueue */ 80#include <sys/rwlock.h> /* XXX */ 81#include <sys/sx.h> /* XXX */ 82#include <sys/_task.h> /* if_link_task */ 83 84#define IF_DUNIT_NONE -1 85 86#include <altq/if_altq.h> 87 88TAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */ 89TAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */ 90TAILQ_HEAD(ifmultihead, ifmultiaddr); 91TAILQ_HEAD(ifgrouphead, ifg_group); 92 93#ifdef _KERNEL 94VNET_DECLARE(struct pfil_head, link_pfil_hook); /* packet filter hooks */ 95#define V_link_pfil_hook VNET(link_pfil_hook) 96#endif /* _KERNEL */ 97 98typedef enum { 99 IFCOUNTER_IPACKETS = 1, 100 IFCOUNTER_IERRORS, 101 IFCOUNTER_OPACKETS, 102 IFCOUNTER_OERRORS, 103 IFCOUNTER_COLLISIONS, 104 IFCOUNTER_IBYTES, 105 IFCOUNTER_OBYTES, 106 IFCOUNTER_IMCASTS, 107 IFCOUNTER_OMCASTS, 108 IFCOUNTER_IQDROPS, 109 IFCOUNTER_OQDROPS, 110 IFCOUNTER_NOPROTO, 111} ifnet_counter; 112 113typedef void (*if_start_fn_t)(struct ifnet *); 114typedef int (*if_ioctl_fn_t)(struct ifnet *, u_long, caddr_t); 115typedef void (*if_init_fn_t)(void *); 116typedef void (*if_qflush_fn_t)(struct ifnet *); 117typedef int (*if_transmit_fn_t)(struct ifnet *, struct mbuf *); 118typedef uint64_t (*if_get_counter_t)(struct ifnet *, ifnet_counter); 119 120/* Opaque object pointing to interface structure (ifnet) */ 121typedef void *if_t; 122 123/* 124 * Structure defining a network interface. 125 * 126 * Size ILP32: 592 (approx) 127 * LP64: 1048 (approx) 128 */ 129struct ifnet { 130 /* General book keeping of interface lists. */ 131 TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */ 132 LIST_ENTRY(ifnet) if_clones; /* interfaces of a cloner */ 133 TAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if */ 134 /* protected by if_addr_lock */ 135 u_char if_alloctype; /* if_type at time of allocation */ 136 137 /* Driver and protocol specific information that remains stable. */ 138 void *if_softc; /* pointer to driver state */ 139 void *if_llsoftc; /* link layer softc */ 140 void *if_l2com; /* pointer to protocol bits */ 141 const char *if_dname; /* driver name */ 142 int if_dunit; /* unit or IF_DUNIT_NONE */ 143 u_short if_index; /* numeric abbreviation for this if */ 144 short if_index_reserved; /* spare space to grow if_index */ 145 char if_xname[IFNAMSIZ]; /* external name (name + unit) */ 146 char *if_description; /* interface description */ 147 148 /* Variable fields that are touched by the stack and drivers. */ 149 int if_flags; /* up/down, broadcast, etc. */ 150 int if_capabilities; /* interface features & capabilities */ 151 int if_capenable; /* enabled features & capabilities */ 152 void *if_linkmib; /* link-type-specific MIB data */ 153 size_t if_linkmiblen; /* length of above data */ 154 int if_drv_flags; /* driver-managed status flags */ 155 u_int if_refcount; /* reference count */ 156 157 /* These fields are shared with struct if_data. */ 158 uint8_t if_type; /* ethernet, tokenring, etc */ 159 uint8_t if_addrlen; /* media address length */ 160 uint8_t if_hdrlen; /* media header length */ 161 uint8_t if_link_state; /* current link state */ 162 uint32_t if_spare32; 163 uint32_t if_mtu; /* maximum transmission unit */ 164 uint32_t if_metric; /* routing metric (external only) */ 165 uint64_t if_baudrate; /* linespeed */ 166 uint64_t if_hwassist; /* HW offload capabilities, see IFCAP */ 167 time_t if_epoch; /* uptime at attach or stat reset */ 168 struct timeval if_lastchange; /* time of last administrative change */ 169 170 struct ifaltq if_snd; /* output queue (includes altq) */ 171 struct task if_linktask; /* task for link change events */ 172 173 /* Addresses of different protocol families assigned to this if. */ 174 struct rwlock if_addr_lock; /* lock to protect address lists */ 175 /* 176 * if_addrhead is the list of all addresses associated to 177 * an interface. 178 * Some code in the kernel assumes that first element 179 * of the list has type AF_LINK, and contains sockaddr_dl 180 * addresses which store the link-level address and the name 181 * of the interface. 182 * However, access to the AF_LINK address through this 183 * field is deprecated. Use if_addr or ifaddr_byindex() instead. 184 */ 185 struct ifaddrhead if_addrhead; /* linked list of addresses per if */ 186 struct ifmultihead if_multiaddrs; /* multicast addresses configured */ 187 int if_amcount; /* number of all-multicast requests */ 188 struct ifaddr *if_addr; /* pointer to link-level address */ 189 const u_int8_t *if_broadcastaddr; /* linklevel broadcast bytestring */ 190 struct rwlock if_afdata_lock; 191 void *if_afdata[AF_MAX]; 192 int if_afdata_initialized; 193 194 /* Additional features hung off the interface. */ 195 u_int if_fib; /* interface FIB */ 196 struct vnet *if_vnet; /* pointer to network stack instance */ 197 struct vnet *if_home_vnet; /* where this ifnet originates from */ 198 struct ifvlantrunk *if_vlantrunk; /* pointer to 802.1q data */ 199 struct bpf_if *if_bpf; /* packet filter structure */ 200 int if_pcount; /* number of promiscuous listeners */ 201 void *if_bridge; /* bridge glue */ 202 void *if_lagg; /* lagg glue */ 203 void *if_pf_kif; /* pf glue */ 204 struct carp_if *if_carp; /* carp interface structure */ 205 struct label *if_label; /* interface MAC label */ 206 struct netmap_adapter *if_netmap; /* netmap(4) softc */ 207 208 /* Various procedures of the layer2 encapsulation and drivers. */ 209 int (*if_output) /* output routine (enqueue) */ 210 (struct ifnet *, struct mbuf *, const struct sockaddr *, 211 struct route *); 212 void (*if_input) /* input routine (from h/w driver) */ 213 (struct ifnet *, struct mbuf *); 214 if_start_fn_t if_start; /* initiate output routine */ 215 if_ioctl_fn_t if_ioctl; /* ioctl routine */ 216 if_init_fn_t if_init; /* Init routine */ 217 int (*if_resolvemulti) /* validate/resolve multicast */ 218 (struct ifnet *, struct sockaddr **, struct sockaddr *); 219 if_qflush_fn_t if_qflush; /* flush any queue */ 220 if_transmit_fn_t if_transmit; /* initiate output routine */ 221 222 void (*if_reassign) /* reassign to vnet routine */ 223 (struct ifnet *, struct vnet *, char *); 224 if_get_counter_t if_get_counter; /* get counter values */ 225 226 /* Stuff that's only temporary and doesn't belong here. */ 227 u_int if_hw_tsomax; /* tso burst length limit, the minimum 228 * is (IP_MAXPACKET / 8). 229 * XXXAO: Have to find a better place 230 * for it eventually. */ 231 /* 232 * Old, racy and expensive statistics, should not be used in 233 * new drivers. 234 */ 235 uint64_t if_ipackets; /* packets received on interface */ 236 uint64_t if_ierrors; /* input errors on interface */ 237 uint64_t if_opackets; /* packets sent on interface */ 238 uint64_t if_oerrors; /* output errors on interface */ 239 uint64_t if_collisions; /* collisions on csma interfaces */ 240 uint64_t if_ibytes; /* total number of octets received */ 241 uint64_t if_obytes; /* total number of octets sent */ 242 uint64_t if_imcasts; /* packets received via multicast */ 243 uint64_t if_omcasts; /* packets sent via multicast */ 244 uint64_t if_iqdrops; /* dropped on input */ 245 uint64_t if_oqdrops; /* dropped on output */ 246 uint64_t if_noproto; /* destined for unsupported protocol */ 247 248 /* 249 * Spare fields to be added before branching a stable branch, so 250 * that structure can be enhanced without changing the kernel 251 * binary interface. 252 */ 253}; 254 255#include <net/ifq.h> /* XXXAO: temporary unconditional include */ 256 257/* for compatibility with other BSDs */ 258#define if_addrlist if_addrhead 259#define if_list if_link 260#define if_name(ifp) ((ifp)->if_xname) 261 262/* 263 * Locks for address lists on the network interface. 264 */ 265#define IF_ADDR_LOCK_INIT(if) rw_init(&(if)->if_addr_lock, "if_addr_lock") 266#define IF_ADDR_LOCK_DESTROY(if) rw_destroy(&(if)->if_addr_lock) 267#define IF_ADDR_WLOCK(if) rw_wlock(&(if)->if_addr_lock) 268#define IF_ADDR_WUNLOCK(if) rw_wunlock(&(if)->if_addr_lock) 269#define IF_ADDR_RLOCK(if) rw_rlock(&(if)->if_addr_lock) 270#define IF_ADDR_RUNLOCK(if) rw_runlock(&(if)->if_addr_lock) 271#define IF_ADDR_LOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_LOCKED) 272#define IF_ADDR_WLOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_WLOCKED) 273 274/* 275 * Function variations on locking macros intended to be used by loadable 276 * kernel modules in order to divorce them from the internals of address list 277 * locking. 278 */ 279void if_addr_rlock(struct ifnet *ifp); /* if_addrhead */ 280void if_addr_runlock(struct ifnet *ifp); /* if_addrhead */ 281void if_maddr_rlock(if_t ifp); /* if_multiaddrs */ 282void if_maddr_runlock(if_t ifp); /* if_multiaddrs */ 283 284#ifdef _KERNEL 285#ifdef _SYS_EVENTHANDLER_H_ 286/* interface link layer address change event */ 287typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *); 288EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t); 289/* interface address change event */ 290typedef void (*ifaddr_event_handler_t)(void *, struct ifnet *); 291EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t); 292/* new interface arrival event */ 293typedef void (*ifnet_arrival_event_handler_t)(void *, struct ifnet *); 294EVENTHANDLER_DECLARE(ifnet_arrival_event, ifnet_arrival_event_handler_t); 295/* interface departure event */ 296typedef void (*ifnet_departure_event_handler_t)(void *, struct ifnet *); 297EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_departure_event_handler_t); 298/* Interface link state change event */ 299typedef void (*ifnet_link_event_handler_t)(void *, struct ifnet *, int); 300EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_event_handler_t); 301#endif /* _SYS_EVENTHANDLER_H_ */ 302 303/* 304 * interface groups 305 */ 306struct ifg_group { 307 char ifg_group[IFNAMSIZ]; 308 u_int ifg_refcnt; 309 void *ifg_pf_kif; 310 TAILQ_HEAD(, ifg_member) ifg_members; 311 TAILQ_ENTRY(ifg_group) ifg_next; 312}; 313 314struct ifg_member { 315 TAILQ_ENTRY(ifg_member) ifgm_next; 316 struct ifnet *ifgm_ifp; 317}; 318 319struct ifg_list { 320 struct ifg_group *ifgl_group; 321 TAILQ_ENTRY(ifg_list) ifgl_next; 322}; 323 324#ifdef _SYS_EVENTHANDLER_H_ 325/* group attach event */ 326typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *); 327EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t); 328/* group detach event */ 329typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *); 330EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t); 331/* group change event */ 332typedef void (*group_change_event_handler_t)(void *, const char *); 333EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t); 334#endif /* _SYS_EVENTHANDLER_H_ */ 335 336#define IF_AFDATA_LOCK_INIT(ifp) \ 337 rw_init(&(ifp)->if_afdata_lock, "if_afdata") 338 339#define IF_AFDATA_WLOCK(ifp) rw_wlock(&(ifp)->if_afdata_lock) 340#define IF_AFDATA_RLOCK(ifp) rw_rlock(&(ifp)->if_afdata_lock) 341#define IF_AFDATA_WUNLOCK(ifp) rw_wunlock(&(ifp)->if_afdata_lock) 342#define IF_AFDATA_RUNLOCK(ifp) rw_runlock(&(ifp)->if_afdata_lock) 343#define IF_AFDATA_LOCK(ifp) IF_AFDATA_WLOCK(ifp) 344#define IF_AFDATA_UNLOCK(ifp) IF_AFDATA_WUNLOCK(ifp) 345#define IF_AFDATA_TRYLOCK(ifp) rw_try_wlock(&(ifp)->if_afdata_lock) 346#define IF_AFDATA_DESTROY(ifp) rw_destroy(&(ifp)->if_afdata_lock) 347 348#define IF_AFDATA_LOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_LOCKED) 349#define IF_AFDATA_RLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_RLOCKED) 350#define IF_AFDATA_WLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_WLOCKED) 351#define IF_AFDATA_UNLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_UNLOCKED) 352 353/* 354 * 72 was chosen below because it is the size of a TCP/IP 355 * header (40) + the minimum mss (32). 356 */ 357#define IF_MINMTU 72 358#define IF_MAXMTU 65535 359 360#define TOEDEV(ifp) ((ifp)->if_llsoftc) 361 362#endif /* _KERNEL */ 363 364/* 365 * The ifaddr structure contains information about one address 366 * of an interface. They are maintained by the different address families, 367 * are allocated and attached when an address is set, and are linked 368 * together so all addresses for an interface can be located. 369 * 370 * NOTE: a 'struct ifaddr' is always at the beginning of a larger 371 * chunk of malloc'ed memory, where we store the three addresses 372 * (ifa_addr, ifa_dstaddr and ifa_netmask) referenced here. 373 */ 374#if defined(_KERNEL) || defined(_WANT_IFADDR) 375struct ifaddr { 376 struct sockaddr *ifa_addr; /* address of interface */ 377 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */ 378#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */ 379 struct sockaddr *ifa_netmask; /* used to determine subnet */ 380 struct ifnet *ifa_ifp; /* back-pointer to interface */ 381 struct carp_softc *ifa_carp; /* pointer to CARP data */ 382 TAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */ 383 void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */ 384 (int, struct rtentry *, struct rt_addrinfo *); 385 u_short ifa_flags; /* mostly rt_flags for cloning */ 386 u_int ifa_refcnt; /* references to this structure */ 387 388 counter_u64_t ifa_ipackets; 389 counter_u64_t ifa_opackets; 390 counter_u64_t ifa_ibytes; 391 counter_u64_t ifa_obytes; 392}; 393#endif 394 395#ifdef _KERNEL 396#define IFA_ROUTE RTF_UP /* route installed */ 397#define IFA_RTSELF RTF_HOST /* loopback route to self installed */ 398 399/* For compatibility with other BSDs. SCTP uses it. */ 400#define ifa_list ifa_link 401 402struct ifaddr * ifa_alloc(size_t size, int flags); 403void ifa_free(struct ifaddr *ifa); 404void ifa_ref(struct ifaddr *ifa); 405#endif /* _KERNEL */ 406 407/* 408 * Multicast address structure. This is analogous to the ifaddr 409 * structure except that it keeps track of multicast addresses. 410 */ 411struct ifmultiaddr { 412 TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */ 413 struct sockaddr *ifma_addr; /* address this membership is for */ 414 struct sockaddr *ifma_lladdr; /* link-layer translation, if any */ 415 struct ifnet *ifma_ifp; /* back-pointer to interface */ 416 u_int ifma_refcount; /* reference count */ 417 void *ifma_protospec; /* protocol-specific state, if any */ 418 struct ifmultiaddr *ifma_llifma; /* pointer to ifma for ifma_lladdr */ 419}; 420 421#ifdef _KERNEL 422 423extern struct rwlock ifnet_rwlock; 424extern struct sx ifnet_sxlock; 425 426#define IFNET_LOCK_INIT() do { \ 427 rw_init_flags(&ifnet_rwlock, "ifnet_rw", RW_RECURSE); \ 428 sx_init_flags(&ifnet_sxlock, "ifnet_sx", SX_RECURSE); \ 429} while(0) 430 431#define IFNET_WLOCK() do { \ 432 sx_xlock(&ifnet_sxlock); \ 433 rw_wlock(&ifnet_rwlock); \ 434} while (0) 435 436#define IFNET_WUNLOCK() do { \ 437 rw_wunlock(&ifnet_rwlock); \ 438 sx_xunlock(&ifnet_sxlock); \ 439} while (0) 440 441/* 442 * To assert the ifnet lock, you must know not only whether it's for read or 443 * write, but also whether it was acquired with sleep support or not. 444 */ 445#define IFNET_RLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_SLOCKED) 446#define IFNET_RLOCK_NOSLEEP_ASSERT() rw_assert(&ifnet_rwlock, RA_RLOCKED) 447#define IFNET_WLOCK_ASSERT() do { \ 448 sx_assert(&ifnet_sxlock, SA_XLOCKED); \ 449 rw_assert(&ifnet_rwlock, RA_WLOCKED); \ 450} while (0) 451 452#define IFNET_RLOCK() sx_slock(&ifnet_sxlock) 453#define IFNET_RLOCK_NOSLEEP() rw_rlock(&ifnet_rwlock) 454#define IFNET_RUNLOCK() sx_sunlock(&ifnet_sxlock) 455#define IFNET_RUNLOCK_NOSLEEP() rw_runlock(&ifnet_rwlock) 456 457/* 458 * Look up an ifnet given its index; the _ref variant also acquires a 459 * reference that must be freed using if_rele(). It is almost always a bug 460 * to call ifnet_byindex() instead if ifnet_byindex_ref(). 461 */ 462struct ifnet *ifnet_byindex(u_short idx); 463struct ifnet *ifnet_byindex_locked(u_short idx); 464struct ifnet *ifnet_byindex_ref(u_short idx); 465 466/* 467 * Given the index, ifaddr_byindex() returns the one and only 468 * link-level ifaddr for the interface. You are not supposed to use 469 * it to traverse the list of addresses associated to the interface. 470 */ 471struct ifaddr *ifaddr_byindex(u_short idx); 472 473VNET_DECLARE(struct ifnethead, ifnet); 474VNET_DECLARE(struct ifgrouphead, ifg_head); 475VNET_DECLARE(int, if_index); 476VNET_DECLARE(struct ifnet *, loif); /* first loopback interface */ 477 478#define V_ifnet VNET(ifnet) 479#define V_ifg_head VNET(ifg_head) 480#define V_if_index VNET(if_index) 481#define V_loif VNET(loif) 482 483int if_addgroup(struct ifnet *, const char *); 484int if_delgroup(struct ifnet *, const char *); 485int if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **); 486int if_allmulti(struct ifnet *, int); 487struct ifnet* if_alloc(u_char); 488void if_attach(struct ifnet *); 489void if_dead(struct ifnet *); 490int if_delmulti(struct ifnet *, struct sockaddr *); 491void if_delmulti_ifma(struct ifmultiaddr *); 492void if_detach(struct ifnet *); 493void if_vmove(struct ifnet *, struct vnet *); 494void if_purgeaddrs(struct ifnet *); 495void if_delallmulti(struct ifnet *); 496void if_down(struct ifnet *); 497struct ifmultiaddr * 498 if_findmulti(struct ifnet *, struct sockaddr *); 499void if_free(struct ifnet *); 500void if_initname(struct ifnet *, const char *, int); 501void if_link_state_change(struct ifnet *, int); 502int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3); 503void if_ref(struct ifnet *); 504void if_rele(struct ifnet *); 505int if_setlladdr(struct ifnet *, const u_char *, int); 506void if_up(struct ifnet *); 507int ifioctl(struct socket *, u_long, caddr_t, struct thread *); 508int ifpromisc(struct ifnet *, int); 509struct ifnet *ifunit(const char *); 510struct ifnet *ifunit_ref(const char *); 511 512int ifa_add_loopback_route(struct ifaddr *, struct sockaddr *); 513int ifa_del_loopback_route(struct ifaddr *, struct sockaddr *); 514int ifa_switch_loopback_route(struct ifaddr *, struct sockaddr *, int fib); 515 516struct ifaddr *ifa_ifwithaddr(struct sockaddr *); 517int ifa_ifwithaddr_check(struct sockaddr *); 518struct ifaddr *ifa_ifwithbroadaddr(struct sockaddr *); 519struct ifaddr *ifa_ifwithdstaddr(struct sockaddr *); 520struct ifaddr *ifa_ifwithdstaddr_fib(struct sockaddr *, int); 521struct ifaddr *ifa_ifwithnet(struct sockaddr *, int); 522struct ifaddr *ifa_ifwithnet_fib(struct sockaddr *, int, int); 523struct ifaddr *ifa_ifwithroute(int, struct sockaddr *, struct sockaddr *); 524struct ifaddr *ifa_ifwithroute_fib(int, struct sockaddr *, struct sockaddr *, u_int); 525struct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *); 526int ifa_preferred(struct ifaddr *, struct ifaddr *); 527 528int if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen); 529 530typedef void *if_com_alloc_t(u_char type, struct ifnet *ifp); 531typedef void if_com_free_t(void *com, u_char type); 532void if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f); 533void if_deregister_com_alloc(u_char type); 534void if_data_copy(struct ifnet *, struct if_data *); 535uint64_t if_get_counter_compat(struct ifnet *, ifnet_counter); 536 537#define IF_LLADDR(ifp) \ 538 LLADDR((struct sockaddr_dl *)((ifp)->if_addr->ifa_addr)) 539 540uint64_t if_setbaudrate(if_t ifp, uint64_t baudrate); 541uint64_t if_getbaudrate(if_t ifp); 542int if_setcapabilities(if_t ifp, int capabilities); 543int if_setcapabilitiesbit(if_t ifp, int setbit, int clearbit); 544int if_getcapabilities(if_t ifp); 545int if_togglecapenable(if_t ifp, int togglecap); 546int if_setcapenable(if_t ifp, int capenable); 547int if_setcapenablebit(if_t ifp, int setcap, int clearcap); 548int if_getcapenable(if_t ifp); 549const char *if_getdname(if_t ifp); 550int if_setdev(if_t ifp, void *dev); 551int if_setdrvflagbits(if_t ifp, int if_setflags, int clear_flags); 552int if_getdrvflags(if_t ifp); 553int if_setdrvflags(if_t ifp, int flags); 554int if_clearhwassist(if_t ifp); 555int if_sethwassistbits(if_t ifp, int toset, int toclear); 556int if_sethwassist(if_t ifp, int hwassist_bit); 557int if_gethwassist(if_t ifp); 558int if_setsoftc(if_t ifp, void *softc); 559void *if_getsoftc(if_t ifp); 560int if_setflags(if_t ifp, int flags); 561int if_setmtu(if_t ifp, int mtu); 562int if_getmtu(if_t ifp); 563int if_setflagbits(if_t ifp, int set, int clear); 564int if_getflags(if_t ifp); 565int if_sendq_empty(if_t ifp); 566int if_setsendqready(if_t ifp); 567int if_setsendqlen(if_t ifp, int tx_desc_count); 568int if_input(if_t ifp, struct mbuf* sendmp); 569int if_sendq_prepend(if_t ifp, struct mbuf *m); 570struct mbuf *if_dequeue(if_t ifp); 571int if_setifheaderlen(if_t ifp, int len); 572void if_setrcvif(struct mbuf *m, if_t ifp); 573void if_setvtag(struct mbuf *m, u_int16_t tag); 574u_int16_t if_getvtag(struct mbuf *m); 575int if_vlantrunkinuse(if_t ifp); 576caddr_t if_getlladdr(if_t ifp); 577void *if_gethandle(u_char); 578void if_bpfmtap(if_t ifp, struct mbuf *m); 579void if_etherbpfmtap(if_t ifp, struct mbuf *m); 580void if_vlancap(if_t ifp); 581 582int if_setupmultiaddr(if_t ifp, void *mta, int *cnt, int max); 583int if_multiaddr_array(if_t ifp, void *mta, int *cnt, int max); 584int if_multiaddr_count(if_t ifp, int max); 585 586int if_getamcount(if_t ifp); 587struct ifaddr * if_getifaddr(if_t ifp); 588/* Shim for drivers using drvapi */ 589int ifmedia_ioctl_drv(if_t ifp, struct ifreq *ifr, struct ifmedia *ifm, 590 u_long cmd); 591 592/* Statistics */ 593 594int if_incipackets(if_t ifp, int pkt); 595int if_incopackets(if_t ifp, int pkts); 596int if_incierrors(if_t ifp, int ierrors); 597int if_incoerrors(if_t ifp, int oerrors); 598int if_inciqdrops(if_t ifp, int val); 599int if_setierrors(if_t ifp, int ierrors); 600int if_setoerrors(if_t ifp, int oerrors); 601int if_setcollisions(if_t ifp, int collisions); 602int if_inccollisions(if_t ifp, int collisions); 603int if_incobytes(if_t ifp, int bytes); 604int if_getiqdrops(if_t ifp); 605int if_incimcasts(if_t ifp, int imcasts); 606int if_incomcasts(if_t ifp, int imcasts); 607int if_setipackets(if_t ifp, int pkts); 608int if_setopackets(if_t ifp, int pkts); 609int if_setibytes(if_t ifp, int bytes); 610int if_setobytes(if_t ifp, int bytes); 611int if_setimcasts(if_t ifp, int pkts); 612 613/* Functions */ 614void if_setinitfn(if_t ifp, void (*)(void *)); 615void if_setioctlfn(if_t ifp, int (*)(void *, u_long, caddr_t)); 616void if_setstartfn(if_t ifp, void (*)(void *)); 617void if_settransmitfn(if_t ifp, if_transmit_fn_t); 618void if_setqflushfn(if_t ifp, if_qflush_fn_t); 619 620 621/* Shim functions till all drivers use drvapi */ 622void arp_ifinit_drv(if_t ifp, struct ifaddr *ifa); 623void ether_ifattach_drv(if_t ifp, const u_int8_t *lla); 624void ether_ifdetach_drv(if_t ifp); 625int ether_ioctl_drv(if_t ifp, u_long cmd, caddr_t data); 626void if_free_drv(if_t ifp); 627void if_initname_drv(if_t ifp, const char *name, int unit); 628void if_linkstate_change_drv(if_t ifp, int link_state); 629 630struct ifmedia; 631void ifmedia_init_drv(struct ifmedia *, int, int (*)(void *), 632 void (*)(void *, struct ifmediareq *)); 633 634void if_addr_rlock_drv(if_t ifp); 635void if_addr_runlock_drv(if_t ifp); 636void if_qflush_drv(if_t ifp); 637 638/* Revisit the below. These are inline functions originally */ 639int drbr_inuse_drv(if_t ifp, struct buf_ring *br); 640struct mbuf* drbr_dequeue_drv(if_t ifp, struct buf_ring *br); 641int drbr_needs_enqueue_drv(if_t ifp, struct buf_ring *br); 642int drbr_enqueue_drv(if_t ifp, struct buf_ring *br, struct mbuf *m); 643 644#endif /* _KERNEL */ 645#endif /* !_NET_IF_VAR_H_ */ 646