ifq.h revision 103900
121259Swollman/* 221259Swollman * Copyright (c) 1982, 1986, 1989, 1993 321259Swollman * The Regents of the University of California. All rights reserved. 421259Swollman * 521259Swollman * Redistribution and use in source and binary forms, with or without 621259Swollman * modification, are permitted provided that the following conditions 721259Swollman * are met: 821259Swollman * 1. Redistributions of source code must retain the above copyright 921259Swollman * notice, this list of conditions and the following disclaimer. 1021259Swollman * 2. Redistributions in binary form must reproduce the above copyright 1121259Swollman * notice, this list of conditions and the following disclaimer in the 1221259Swollman * documentation and/or other materials provided with the distribution. 1321259Swollman * 3. All advertising materials mentioning features or use of this software 1421259Swollman * must display the following acknowledgement: 1521259Swollman * This product includes software developed by the University of 1621259Swollman * California, Berkeley and its contributors. 1721259Swollman * 4. Neither the name of the University nor the names of its contributors 1821259Swollman * may be used to endorse or promote products derived from this software 1921259Swollman * without specific prior written permission. 2021259Swollman * 2121259Swollman * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2221259Swollman * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2321259Swollman * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2421259Swollman * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2521259Swollman * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2621259Swollman * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2721259Swollman * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2821259Swollman * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2921259Swollman * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3021259Swollman * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3121259Swollman * SUCH DAMAGE. 3221259Swollman * 3321259Swollman * From: @(#)if.h 8.1 (Berkeley) 6/10/93 3450477Speter * $FreeBSD: head/sys/net/if_var.h 103900 2002-09-24 17:35:08Z brooks $ 3521259Swollman */ 3621259Swollman 3721259Swollman#ifndef _NET_IF_VAR_H_ 3821259Swollman#define _NET_IF_VAR_H_ 3921259Swollman 4021259Swollman/* 4121259Swollman * Structures defining a network interface, providing a packet 4221259Swollman * transport mechanism (ala level 0 of the PUP protocols). 4321259Swollman * 4421259Swollman * Each interface accepts output datagrams of a specified maximum 4521259Swollman * length, and provides higher level routines with input datagrams 4621259Swollman * received from its medium. 4721259Swollman * 4821259Swollman * Output occurs when the routine if_output is called, with three parameters: 4921259Swollman * (*ifp->if_output)(ifp, m, dst, rt) 5021259Swollman * Here m is the mbuf chain to be sent and dst is the destination address. 5121259Swollman * The output routine encapsulates the supplied datagram if necessary, 5221259Swollman * and then transmits it on its medium. 5321259Swollman * 5421259Swollman * On input, each interface unwraps the data received by it, and either 5521259Swollman * places it on the input queue of a internetwork datagram routine 5621259Swollman * and posts the associated software interrupt, or passes the datagram to a raw 5721259Swollman * packet input routine. 5821259Swollman * 5921259Swollman * Routines exist for locating interfaces by their addresses 6021259Swollman * or for locating a interface on a certain network, as well as more general 6121259Swollman * routing and gateway routines maintaining information used to locate 6221259Swollman * interfaces. These routines live in the files if.c and route.c 6321259Swollman */ 6421259Swollman 6521259Swollman#ifdef __STDC__ 6621259Swollman/* 6721259Swollman * Forward structure declarations for function prototypes [sic]. 6821259Swollman */ 6921259Swollmanstruct mbuf; 7083366Sjulianstruct thread; 7121259Swollmanstruct rtentry; 7285074Srustruct rt_addrinfo; 7321259Swollmanstruct socket; 7421259Swollmanstruct ether_header; 7521259Swollman#endif 7621259Swollman 77101849Srwatson#include <sys/_label.h> /* struct label */ 7821259Swollman#include <sys/queue.h> /* get TAILQ macros */ 7921259Swollman 8069224Sjlemon#ifdef _KERNEL 8169152Sjlemon#include <sys/mbuf.h> 8274914Sjhb#include <sys/systm.h> /* XXX */ 8369224Sjlemon#endif /* _KERNEL */ 8474914Sjhb#include <sys/lock.h> /* XXX */ 8574914Sjhb#include <sys/mutex.h> /* XXX */ 8683130Sjlemon#include <sys/event.h> /* XXX */ 8769152Sjlemon 8860938SjakeTAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */ 8960938SjakeTAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */ 9060938SjakeTAILQ_HEAD(ifprefixhead, ifprefix); 9172084SphkTAILQ_HEAD(ifmultihead, ifmultiaddr); 9221259Swollman 9321259Swollman/* 9421259Swollman * Structure defining a queue for a network interface. 9521259Swollman */ 9621259Swollmanstruct ifqueue { 9721259Swollman struct mbuf *ifq_head; 9821259Swollman struct mbuf *ifq_tail; 9921259Swollman int ifq_len; 10021259Swollman int ifq_maxlen; 10121259Swollman int ifq_drops; 10269152Sjlemon struct mtx ifq_mtx; 10321259Swollman}; 10421259Swollman 10521259Swollman/* 10621259Swollman * Structure defining a network interface. 10721259Swollman * 10821259Swollman * (Would like to call this struct ``if'', but C isn't PL/1.) 10921259Swollman */ 11084380Smjacob 11184380Smjacob/* 11284380Smjacob * NB: For FreeBSD, it is assumed that each NIC driver's softc starts with 11384380Smjacob * one of these structures, typically held within an arpcom structure. 11486797Sluigi * 11586797Sluigi * struct <foo>_softc { 11686797Sluigi * struct arpcom { 11786797Sluigi * struct ifnet ac_if; 11886797Sluigi * ... 11986797Sluigi * } <arpcom> ; 12086797Sluigi * ... 12186797Sluigi * }; 12286797Sluigi * 12386797Sluigi * The assumption is used in a number of places, including many 12486797Sluigi * files in sys/net, device drivers, and sys/dev/mii.c:miibus_attach(). 12586797Sluigi * 12686797Sluigi * Unfortunately devices' softc are opaque, so we depend on this layout 12786797Sluigi * to locate the struct ifnet from the softc in the generic code. 12886797Sluigi * 12984380Smjacob */ 13021259Swollmanstruct ifnet { 13121259Swollman void *if_softc; /* pointer to driver state */ 13221259Swollman char *if_name; /* name, e.g. ``en'' or ``lo'' */ 13360938Sjake TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */ 13421259Swollman struct ifaddrhead if_addrhead; /* linked list of addresses per if */ 13583130Sjlemon struct klist if_klist; /* events attached to this if */ 13683130Sjlemon int if_pcount; /* number of promiscuous listeners */ 13721259Swollman struct bpf_if *if_bpf; /* packet filter structure */ 13821259Swollman u_short if_index; /* numeric abbreviation for this if */ 13921259Swollman short if_unit; /* sub-unit for lower level driver */ 14021259Swollman short if_timer; /* time 'til if_watchdog called */ 141102052Ssobomax int if_flags; /* up/down, broadcast, etc. */ 14283624Sjlemon int if_capabilities; /* interface capabilities */ 14383624Sjlemon int if_capenable; /* enabled features */ 14421259Swollman int if_ipending; /* interrupts pending */ 14521259Swollman void *if_linkmib; /* link-type-specific MIB data */ 14621259Swollman size_t if_linkmiblen; /* length of above data */ 14721259Swollman struct if_data if_data; 14821404Swollman struct ifmultihead if_multiaddrs; /* multicast addresses configured */ 14921404Swollman int if_amcount; /* number of all-multicast requests */ 15021259Swollman/* procedure handles */ 15121259Swollman int (*if_output) /* output routine (enqueue) */ 15292725Salfred (struct ifnet *, struct mbuf *, struct sockaddr *, 15392725Salfred struct rtentry *); 15421259Swollman void (*if_start) /* initiate output routine */ 15592725Salfred (struct ifnet *); 15621259Swollman int (*if_done) /* output complete routine */ 15792725Salfred (struct ifnet *); /* (XXX not used; fake prototype) */ 15821259Swollman int (*if_ioctl) /* ioctl routine */ 15992725Salfred (struct ifnet *, u_long, caddr_t); 16021259Swollman void (*if_watchdog) /* timer routine */ 16192725Salfred (struct ifnet *); 16221259Swollman int (*if_poll_recv) /* polled receive routine */ 16392725Salfred (struct ifnet *, int *); 16421259Swollman int (*if_poll_xmit) /* polled transmit routine */ 16592725Salfred (struct ifnet *, int *); 16621259Swollman void (*if_poll_intren) /* polled interrupt reenable routine */ 16792725Salfred (struct ifnet *); 16821259Swollman void (*if_poll_slowinput) /* input routine for slow devices */ 16992725Salfred (struct ifnet *, struct mbuf *); 17021259Swollman void (*if_init) /* Init routine */ 17192725Salfred (void *); 17221404Swollman int (*if_resolvemulti) /* validate/resolve multicast */ 17392725Salfred (struct ifnet *, struct sockaddr **, struct sockaddr *); 17421259Swollman struct ifqueue if_snd; /* output queue */ 17521259Swollman struct ifqueue *if_poll_slowq; /* input queue for slow devices */ 17652904Sshin struct ifprefixhead if_prefixhead; /* list of prefixes per if */ 17784931Sfjoe u_int8_t *if_broadcastaddr; /* linklevel broadcast bytestring */ 178100992Srwatson struct label if_label; /* interface MAC label */ 17921259Swollman}; 18069152Sjlemon 18192725Salfredtypedef void if_init_f_t(void *); 18221259Swollman 18321259Swollman#define if_mtu if_data.ifi_mtu 18421259Swollman#define if_type if_data.ifi_type 18521259Swollman#define if_physical if_data.ifi_physical 18621259Swollman#define if_addrlen if_data.ifi_addrlen 18721259Swollman#define if_hdrlen if_data.ifi_hdrlen 18821259Swollman#define if_metric if_data.ifi_metric 18921259Swollman#define if_baudrate if_data.ifi_baudrate 19058698Sjlemon#define if_hwassist if_data.ifi_hwassist 19121259Swollman#define if_ipackets if_data.ifi_ipackets 19221259Swollman#define if_ierrors if_data.ifi_ierrors 19321259Swollman#define if_opackets if_data.ifi_opackets 19421259Swollman#define if_oerrors if_data.ifi_oerrors 19521259Swollman#define if_collisions if_data.ifi_collisions 19621259Swollman#define if_ibytes if_data.ifi_ibytes 19721259Swollman#define if_obytes if_data.ifi_obytes 19821259Swollman#define if_imcasts if_data.ifi_imcasts 19921259Swollman#define if_omcasts if_data.ifi_omcasts 20021259Swollman#define if_iqdrops if_data.ifi_iqdrops 20121259Swollman#define if_noproto if_data.ifi_noproto 20221259Swollman#define if_lastchange if_data.ifi_lastchange 20321259Swollman#define if_recvquota if_data.ifi_recvquota 20421259Swollman#define if_xmitquota if_data.ifi_xmitquota 20521259Swollman#define if_rawoutput(if, m, sa) if_output(if, m, sa, (struct rtentry *)0) 20621259Swollman 20753541Sshin/* for compatibility with other BSDs */ 20853541Sshin#define if_addrlist if_addrhead 20953541Sshin#define if_list if_link 21053541Sshin 21121259Swollman/* 21221259Swollman * Bit values in if_ipending 21321259Swollman */ 21421259Swollman#define IFI_RECV 1 /* I want to receive */ 21521259Swollman#define IFI_XMIT 2 /* I want to transmit */ 21621259Swollman 21721259Swollman/* 21821259Swollman * Output queues (ifp->if_snd) and slow device input queues (*ifp->if_slowq) 21921259Swollman * are queues of messages stored on ifqueue structures 22021259Swollman * (defined above). Entries are added to and deleted from these structures 22121259Swollman * by these macros, which should be called with ipl raised to splimp(). 22221259Swollman */ 22372200Sbmilekic#define IF_LOCK(ifq) mtx_lock(&(ifq)->ifq_mtx) 22472200Sbmilekic#define IF_UNLOCK(ifq) mtx_unlock(&(ifq)->ifq_mtx) 22569152Sjlemon#define _IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen) 22669152Sjlemon#define _IF_DROP(ifq) ((ifq)->ifq_drops++) 22769152Sjlemon#define _IF_QLEN(ifq) ((ifq)->ifq_len) 22821259Swollman 22969152Sjlemon#define _IF_ENQUEUE(ifq, m) do { \ 23069152Sjlemon (m)->m_nextpkt = NULL; \ 23169152Sjlemon if ((ifq)->ifq_tail == NULL) \ 23269152Sjlemon (ifq)->ifq_head = m; \ 23369152Sjlemon else \ 23469152Sjlemon (ifq)->ifq_tail->m_nextpkt = m; \ 23569152Sjlemon (ifq)->ifq_tail = m; \ 23669152Sjlemon (ifq)->ifq_len++; \ 23769152Sjlemon} while (0) 23869152Sjlemon 23969152Sjlemon#define IF_ENQUEUE(ifq, m) do { \ 24069152Sjlemon IF_LOCK(ifq); \ 24169152Sjlemon _IF_ENQUEUE(ifq, m); \ 24269152Sjlemon IF_UNLOCK(ifq); \ 24369152Sjlemon} while (0) 24469152Sjlemon 24569152Sjlemon#define _IF_PREPEND(ifq, m) do { \ 24669152Sjlemon (m)->m_nextpkt = (ifq)->ifq_head; \ 24769152Sjlemon if ((ifq)->ifq_tail == NULL) \ 24869152Sjlemon (ifq)->ifq_tail = (m); \ 24969152Sjlemon (ifq)->ifq_head = (m); \ 25069152Sjlemon (ifq)->ifq_len++; \ 25169152Sjlemon} while (0) 25269152Sjlemon 25369152Sjlemon#define IF_PREPEND(ifq, m) do { \ 25469152Sjlemon IF_LOCK(ifq); \ 25569152Sjlemon _IF_PREPEND(ifq, m); \ 25669152Sjlemon IF_UNLOCK(ifq); \ 25769152Sjlemon} while (0) 25869152Sjlemon 25969152Sjlemon#define _IF_DEQUEUE(ifq, m) do { \ 26069152Sjlemon (m) = (ifq)->ifq_head; \ 26169152Sjlemon if (m) { \ 26269152Sjlemon if (((ifq)->ifq_head = (m)->m_nextpkt) == 0) \ 26369152Sjlemon (ifq)->ifq_tail = NULL; \ 26469152Sjlemon (m)->m_nextpkt = NULL; \ 26569152Sjlemon (ifq)->ifq_len--; \ 26669152Sjlemon } \ 26769152Sjlemon} while (0) 26869152Sjlemon 26969152Sjlemon#define IF_DEQUEUE(ifq, m) do { \ 27069152Sjlemon IF_LOCK(ifq); \ 27169152Sjlemon _IF_DEQUEUE(ifq, m); \ 27269152Sjlemon IF_UNLOCK(ifq); \ 27369152Sjlemon} while (0) 27469152Sjlemon 27569152Sjlemon#define IF_DRAIN(ifq) do { \ 27669152Sjlemon struct mbuf *m; \ 27769152Sjlemon IF_LOCK(ifq); \ 27869152Sjlemon for (;;) { \ 27969152Sjlemon _IF_DEQUEUE(ifq, m); \ 28069152Sjlemon if (m == NULL) \ 28169152Sjlemon break; \ 28269152Sjlemon m_freem(m); \ 28369152Sjlemon } \ 28469152Sjlemon IF_UNLOCK(ifq); \ 28569152Sjlemon} while (0) 28669152Sjlemon 28755205Speter#ifdef _KERNEL 28869152Sjlemon#define IF_HANDOFF(ifq, m, ifp) if_handoff(ifq, m, ifp, 0) 28969152Sjlemon#define IF_HANDOFF_ADJ(ifq, m, ifp, adj) if_handoff(ifq, m, ifp, adj) 29021259Swollman 29135210Sbdestatic __inline int 29269152Sjlemonif_handoff(struct ifqueue *ifq, struct mbuf *m, struct ifnet *ifp, int adjust) 29321259Swollman{ 29469152Sjlemon int active = 0; 29521259Swollman 29669152Sjlemon IF_LOCK(ifq); 29769152Sjlemon if (_IF_QFULL(ifq)) { 29869152Sjlemon _IF_DROP(ifq); 29969152Sjlemon IF_UNLOCK(ifq); 30069152Sjlemon m_freem(m); 30169152Sjlemon return (0); 30269152Sjlemon } 30369152Sjlemon if (ifp != NULL) { 30469152Sjlemon ifp->if_obytes += m->m_pkthdr.len + adjust; 30569152Sjlemon if (m->m_flags & M_MCAST) 30669152Sjlemon ifp->if_omcasts++; 30769152Sjlemon active = ifp->if_flags & IFF_OACTIVE; 30869152Sjlemon } 30969152Sjlemon _IF_ENQUEUE(ifq, m); 31069152Sjlemon IF_UNLOCK(ifq); 31186364Sjhb if (ifp != NULL && !active) 31296173Simp (*ifp->if_start)(ifp); 31369152Sjlemon return (1); 31421259Swollman} 31521259Swollman 31649459Sbrian/* 31749459Sbrian * 72 was chosen below because it is the size of a TCP/IP 31849459Sbrian * header (40) + the minimum mss (32). 31949459Sbrian */ 32049459Sbrian#define IF_MINMTU 72 32149459Sbrian#define IF_MAXMTU 65535 32249459Sbrian 32355205Speter#endif /* _KERNEL */ 32421259Swollman 32521259Swollman/* 32621259Swollman * The ifaddr structure contains information about one address 32721259Swollman * of an interface. They are maintained by the different address families, 32821259Swollman * are allocated and attached when an address is set, and are linked 32921259Swollman * together so all addresses for an interface can be located. 33021259Swollman */ 33121259Swollmanstruct ifaddr { 33221259Swollman struct sockaddr *ifa_addr; /* address of interface */ 33321259Swollman struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */ 33421259Swollman#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */ 33521259Swollman struct sockaddr *ifa_netmask; /* used to determine subnet */ 33667334Sjoe struct if_data if_data; /* not all members are meaningful */ 33721259Swollman struct ifnet *ifa_ifp; /* back-pointer to interface */ 33860938Sjake TAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */ 33921259Swollman void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */ 34092725Salfred (int, struct rtentry *, struct rt_addrinfo *); 34121259Swollman u_short ifa_flags; /* mostly rt_flags for cloning */ 34247254Spb u_int ifa_refcnt; /* references to this structure */ 34321259Swollman int ifa_metric; /* cost of going out this interface */ 34421259Swollman#ifdef notdef 34521259Swollman struct rtentry *ifa_rt; /* XXXX for ROUTETOIF ????? */ 34621259Swollman#endif 34728845Sjulian int (*ifa_claim_addr) /* check if an addr goes to this if */ 34892725Salfred (struct ifaddr *, struct sockaddr *); 34928845Sjulian 35021259Swollman}; 35121259Swollman#define IFA_ROUTE RTF_UP /* route installed */ 35221259Swollman 35353541Sshin/* for compatibility with other BSDs */ 35453541Sshin#define ifa_list ifa_link 35553541Sshin 35621404Swollman/* 35752904Sshin * The prefix structure contains information about one prefix 35852904Sshin * of an interface. They are maintained by the different address families, 35952904Sshin * are allocated and attached when an prefix or an address is set, 36053541Sshin * and are linked together so all prefixes for an interface can be located. 36152904Sshin */ 36252904Sshinstruct ifprefix { 36352904Sshin struct sockaddr *ifpr_prefix; /* prefix of interface */ 36452904Sshin struct ifnet *ifpr_ifp; /* back-pointer to interface */ 36560938Sjake TAILQ_ENTRY(ifprefix) ifpr_list; /* queue macro glue */ 36652904Sshin u_char ifpr_plen; /* prefix length in bits */ 36752904Sshin u_char ifpr_type; /* protocol dependent prefix type */ 36852904Sshin}; 36952904Sshin 37052904Sshin/* 37121404Swollman * Multicast address structure. This is analogous to the ifaddr 37221404Swollman * structure except that it keeps track of multicast addresses. 37321404Swollman * Also, the reference count here is a count of requests for this 37421404Swollman * address, not a count of pointers to this structure. 37521404Swollman */ 37621404Swollmanstruct ifmultiaddr { 37772084Sphk TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */ 37821434Swollman struct sockaddr *ifma_addr; /* address this membership is for */ 37921434Swollman struct sockaddr *ifma_lladdr; /* link-layer translation, if any */ 38021434Swollman struct ifnet *ifma_ifp; /* back-pointer to interface */ 38121434Swollman u_int ifma_refcount; /* reference count */ 38221434Swollman void *ifma_protospec; /* protocol-specific state, if any */ 38321404Swollman}; 38421404Swollman 38555205Speter#ifdef _KERNEL 38621259Swollman#define IFAFREE(ifa) \ 38746568Speter do { \ 38846568Speter if ((ifa)->ifa_refcnt <= 0) \ 38946568Speter ifafree(ifa); \ 39046568Speter else \ 39146568Speter (ifa)->ifa_refcnt--; \ 39246568Speter } while (0) 39321259Swollman 39483130Sjlemonstruct ifindex_entry { 39587914Sjlemon struct ifnet *ife_ifnet; 39683130Sjlemon struct ifaddr *ife_ifnet_addr; 39783130Sjlemon dev_t ife_dev; 39883130Sjlemon}; 39983130Sjlemon 40083130Sjlemon#define ifnet_byindex(idx) ifindex_table[(idx)].ife_ifnet 40183130Sjlemon#define ifaddr_byindex(idx) ifindex_table[(idx)].ife_ifnet_addr 40283130Sjlemon#define ifdev_byindex(idx) ifindex_table[(idx)].ife_dev 40383130Sjlemon 40421259Swollmanextern struct ifnethead ifnet; 40583130Sjlemonextern struct ifindex_entry *ifindex_table; 40621259Swollmanextern int ifqmaxlen; 40771791Speterextern struct ifnet *loif; /* first loopback interface */ 40821259Swollmanextern int if_index; 40921259Swollman 41092725Salfredvoid ether_ifattach(struct ifnet *, int); 41192725Salfredvoid ether_ifdetach(struct ifnet *, int); 41292725Salfredvoid ether_input(struct ifnet *, struct ether_header *, struct mbuf *); 41392725Salfredvoid ether_demux(struct ifnet *, struct ether_header *, struct mbuf *); 41492725Salfredint ether_output(struct ifnet *, 41592725Salfred struct mbuf *, struct sockaddr *, struct rtentry *); 41692725Salfredint ether_output_frame(struct ifnet *, struct mbuf *); 41792725Salfredint ether_ioctl(struct ifnet *, int, caddr_t); 41821259Swollman 41992725Salfredint if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **); 42092725Salfredint if_allmulti(struct ifnet *, int); 42192725Salfredvoid if_attach(struct ifnet *); 42292725Salfredint if_delmulti(struct ifnet *, struct sockaddr *); 42392725Salfredvoid if_detach(struct ifnet *); 42492725Salfredvoid if_down(struct ifnet *); 425103900Sbrooksint if_printf(struct ifnet *, const char *, ...) __printflike(2, 3); 42692725Salfredvoid if_route(struct ifnet *, int flag, int fam); 42792725Salfredint if_setlladdr(struct ifnet *, const u_char *, int); 42892725Salfredvoid if_unroute(struct ifnet *, int flag, int fam); 42992725Salfredvoid if_up(struct ifnet *); 43092725Salfred/*void ifinit(void);*/ /* declared in systm.h for main() */ 43192725Salfredint ifioctl(struct socket *, u_long, caddr_t, struct thread *); 43292725Salfredint ifpromisc(struct ifnet *, int); 43392725Salfredstruct ifnet *ifunit(const char *); 43492725Salfredstruct ifnet *if_withname(struct sockaddr *); 43521259Swollman 43692725Salfredint if_poll_recv_slow(struct ifnet *ifp, int *quotap); 43792725Salfredvoid if_poll_xmit_slow(struct ifnet *ifp, int *quotap); 43892725Salfredvoid if_poll_throttle(void); 43992725Salfredvoid if_poll_unthrottle(void *); 44092725Salfredvoid if_poll_init(void); 44192725Salfredvoid if_poll(void); 44221259Swollman 44392725Salfredstruct ifaddr *ifa_ifwithaddr(struct sockaddr *); 44492725Salfredstruct ifaddr *ifa_ifwithdstaddr(struct sockaddr *); 44592725Salfredstruct ifaddr *ifa_ifwithnet(struct sockaddr *); 44692725Salfredstruct ifaddr *ifa_ifwithroute(int, struct sockaddr *, struct sockaddr *); 44792725Salfredstruct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *); 44892725Salfredvoid ifafree(struct ifaddr *); 44921259Swollman 45092725Salfredstruct ifmultiaddr *ifmaof_ifpforaddr(struct sockaddr *, struct ifnet *); 45192725Salfredint if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen); 45221434Swollman 45392725Salfredvoid if_clone_attach(struct if_clone *); 45492725Salfredvoid if_clone_detach(struct if_clone *); 45579103Sbrooks 45692725Salfredint if_clone_create(char *, int); 45792725Salfredint if_clone_destroy(const char *); 45879103Sbrooks 45984931Sfjoe#define IF_LLADDR(ifp) \ 46084931Sfjoe LLADDR((struct sockaddr_dl *) ifaddr_byindex((ifp)->if_index)->ifa_addr) 46184931Sfjoe 46287902Sluigi#ifdef DEVICE_POLLING 46387902Sluigienum poll_cmd { POLL_ONLY, POLL_AND_CHECK_STATUS, POLL_DEREGISTER }; 46487902Sluigi 46592725Salfredtypedef void poll_handler_t(struct ifnet *ifp, enum poll_cmd cmd, int count); 46692725Salfredint ether_poll_register(poll_handler_t *h, struct ifnet *ifp); 46792725Salfredint ether_poll_deregister(struct ifnet *ifp); 46887902Sluigi#endif /* DEVICE_POLLING */ 46987902Sluigi 47055205Speter#endif /* _KERNEL */ 47121259Swollman 47221259Swollman#endif /* !_NET_IF_VAR_H_ */ 473