if_var.h revision 84380
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 84380 2001-10-02 18:08:34Z mjacob $ 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; 7221259Swollmanstruct socket; 7321259Swollmanstruct ether_header; 7421259Swollman#endif 7521259Swollman 7621259Swollman#include <sys/queue.h> /* get TAILQ macros */ 7721259Swollman 7869224Sjlemon#ifdef _KERNEL 7969152Sjlemon#include <sys/mbuf.h> 8074914Sjhb#include <sys/systm.h> /* XXX */ 8169224Sjlemon#endif /* _KERNEL */ 8274914Sjhb#include <sys/lock.h> /* XXX */ 8374914Sjhb#include <sys/mutex.h> /* XXX */ 8483130Sjlemon#include <sys/event.h> /* XXX */ 8569152Sjlemon 8660938SjakeTAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */ 8760938SjakeTAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */ 8860938SjakeTAILQ_HEAD(ifprefixhead, ifprefix); 8972084SphkTAILQ_HEAD(ifmultihead, ifmultiaddr); 9021259Swollman 9121259Swollman/* 9221259Swollman * Structure defining a queue for a network interface. 9321259Swollman */ 9421259Swollmanstruct ifqueue { 9521259Swollman struct mbuf *ifq_head; 9621259Swollman struct mbuf *ifq_tail; 9721259Swollman int ifq_len; 9821259Swollman int ifq_maxlen; 9921259Swollman int ifq_drops; 10069152Sjlemon struct mtx ifq_mtx; 10121259Swollman}; 10221259Swollman 10321259Swollman/* 10421259Swollman * Structure defining a network interface. 10521259Swollman * 10621259Swollman * (Would like to call this struct ``if'', but C isn't PL/1.) 10721259Swollman */ 10884380Smjacob 10984380Smjacob/* 11084380Smjacob * NB: For FreeBSD, it is assumed that each NIC driver's softc starts with 11184380Smjacob * one of these structures, typically held within an arpcom structure. 11284380Smjacob */ 11321259Swollmanstruct ifnet { 11421259Swollman void *if_softc; /* pointer to driver state */ 11521259Swollman char *if_name; /* name, e.g. ``en'' or ``lo'' */ 11660938Sjake TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */ 11721259Swollman struct ifaddrhead if_addrhead; /* linked list of addresses per if */ 11883130Sjlemon struct klist if_klist; /* events attached to this if */ 11983130Sjlemon int if_pcount; /* number of promiscuous listeners */ 12021259Swollman struct bpf_if *if_bpf; /* packet filter structure */ 12121259Swollman u_short if_index; /* numeric abbreviation for this if */ 12221259Swollman short if_unit; /* sub-unit for lower level driver */ 12321259Swollman short if_timer; /* time 'til if_watchdog called */ 12421259Swollman short if_flags; /* up/down, broadcast, etc. */ 12583624Sjlemon int if_capabilities; /* interface capabilities */ 12683624Sjlemon int if_capenable; /* enabled features */ 12769152Sjlemon int if_mpsafe; /* XXX TEMPORARY */ 12821259Swollman int if_ipending; /* interrupts pending */ 12921259Swollman void *if_linkmib; /* link-type-specific MIB data */ 13021259Swollman size_t if_linkmiblen; /* length of above data */ 13121259Swollman struct if_data if_data; 13221404Swollman struct ifmultihead if_multiaddrs; /* multicast addresses configured */ 13321404Swollman int if_amcount; /* number of all-multicast requests */ 13421259Swollman/* procedure handles */ 13521259Swollman int (*if_output) /* output routine (enqueue) */ 13621259Swollman __P((struct ifnet *, struct mbuf *, struct sockaddr *, 13721259Swollman struct rtentry *)); 13821259Swollman void (*if_start) /* initiate output routine */ 13921259Swollman __P((struct ifnet *)); 14021259Swollman int (*if_done) /* output complete routine */ 14121259Swollman __P((struct ifnet *)); /* (XXX not used; fake prototype) */ 14221259Swollman int (*if_ioctl) /* ioctl routine */ 14336735Sdfr __P((struct ifnet *, u_long, caddr_t)); 14421259Swollman void (*if_watchdog) /* timer routine */ 14521259Swollman __P((struct ifnet *)); 14621259Swollman int (*if_poll_recv) /* polled receive routine */ 14721259Swollman __P((struct ifnet *, int *)); 14821259Swollman int (*if_poll_xmit) /* polled transmit routine */ 14921259Swollman __P((struct ifnet *, int *)); 15021259Swollman void (*if_poll_intren) /* polled interrupt reenable routine */ 15121259Swollman __P((struct ifnet *)); 15221259Swollman void (*if_poll_slowinput) /* input routine for slow devices */ 15321259Swollman __P((struct ifnet *, struct mbuf *)); 15421259Swollman void (*if_init) /* Init routine */ 15521259Swollman __P((void *)); 15621404Swollman int (*if_resolvemulti) /* validate/resolve multicast */ 15721404Swollman __P((struct ifnet *, struct sockaddr **, struct sockaddr *)); 15821259Swollman struct ifqueue if_snd; /* output queue */ 15921259Swollman struct ifqueue *if_poll_slowq; /* input queue for slow devices */ 16052904Sshin struct ifprefixhead if_prefixhead; /* list of prefixes per if */ 16121259Swollman}; 16269152Sjlemon 16321259Swollmantypedef void if_init_f_t __P((void *)); 16421259Swollman 16521259Swollman#define if_mtu if_data.ifi_mtu 16621259Swollman#define if_type if_data.ifi_type 16721259Swollman#define if_physical if_data.ifi_physical 16821259Swollman#define if_addrlen if_data.ifi_addrlen 16921259Swollman#define if_hdrlen if_data.ifi_hdrlen 17021259Swollman#define if_metric if_data.ifi_metric 17121259Swollman#define if_baudrate if_data.ifi_baudrate 17258698Sjlemon#define if_hwassist if_data.ifi_hwassist 17321259Swollman#define if_ipackets if_data.ifi_ipackets 17421259Swollman#define if_ierrors if_data.ifi_ierrors 17521259Swollman#define if_opackets if_data.ifi_opackets 17621259Swollman#define if_oerrors if_data.ifi_oerrors 17721259Swollman#define if_collisions if_data.ifi_collisions 17821259Swollman#define if_ibytes if_data.ifi_ibytes 17921259Swollman#define if_obytes if_data.ifi_obytes 18021259Swollman#define if_imcasts if_data.ifi_imcasts 18121259Swollman#define if_omcasts if_data.ifi_omcasts 18221259Swollman#define if_iqdrops if_data.ifi_iqdrops 18321259Swollman#define if_noproto if_data.ifi_noproto 18421259Swollman#define if_lastchange if_data.ifi_lastchange 18521259Swollman#define if_recvquota if_data.ifi_recvquota 18621259Swollman#define if_xmitquota if_data.ifi_xmitquota 18721259Swollman#define if_rawoutput(if, m, sa) if_output(if, m, sa, (struct rtentry *)0) 18821259Swollman 18953541Sshin/* for compatibility with other BSDs */ 19053541Sshin#define if_addrlist if_addrhead 19153541Sshin#define if_list if_link 19253541Sshin 19321259Swollman/* 19421259Swollman * Bit values in if_ipending 19521259Swollman */ 19621259Swollman#define IFI_RECV 1 /* I want to receive */ 19721259Swollman#define IFI_XMIT 2 /* I want to transmit */ 19821259Swollman 19921259Swollman/* 20021259Swollman * Output queues (ifp->if_snd) and slow device input queues (*ifp->if_slowq) 20121259Swollman * are queues of messages stored on ifqueue structures 20221259Swollman * (defined above). Entries are added to and deleted from these structures 20321259Swollman * by these macros, which should be called with ipl raised to splimp(). 20421259Swollman */ 20572200Sbmilekic#define IF_LOCK(ifq) mtx_lock(&(ifq)->ifq_mtx) 20672200Sbmilekic#define IF_UNLOCK(ifq) mtx_unlock(&(ifq)->ifq_mtx) 20769152Sjlemon#define _IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen) 20869152Sjlemon#define _IF_DROP(ifq) ((ifq)->ifq_drops++) 20969152Sjlemon#define _IF_QLEN(ifq) ((ifq)->ifq_len) 21021259Swollman 21169152Sjlemon#define _IF_ENQUEUE(ifq, m) do { \ 21269152Sjlemon (m)->m_nextpkt = NULL; \ 21369152Sjlemon if ((ifq)->ifq_tail == NULL) \ 21469152Sjlemon (ifq)->ifq_head = m; \ 21569152Sjlemon else \ 21669152Sjlemon (ifq)->ifq_tail->m_nextpkt = m; \ 21769152Sjlemon (ifq)->ifq_tail = m; \ 21869152Sjlemon (ifq)->ifq_len++; \ 21969152Sjlemon} while (0) 22069152Sjlemon 22169152Sjlemon#define IF_ENQUEUE(ifq, m) do { \ 22269152Sjlemon IF_LOCK(ifq); \ 22369152Sjlemon _IF_ENQUEUE(ifq, m); \ 22469152Sjlemon IF_UNLOCK(ifq); \ 22569152Sjlemon} while (0) 22669152Sjlemon 22769152Sjlemon#define _IF_PREPEND(ifq, m) do { \ 22869152Sjlemon (m)->m_nextpkt = (ifq)->ifq_head; \ 22969152Sjlemon if ((ifq)->ifq_tail == NULL) \ 23069152Sjlemon (ifq)->ifq_tail = (m); \ 23169152Sjlemon (ifq)->ifq_head = (m); \ 23269152Sjlemon (ifq)->ifq_len++; \ 23369152Sjlemon} while (0) 23469152Sjlemon 23569152Sjlemon#define IF_PREPEND(ifq, m) do { \ 23669152Sjlemon IF_LOCK(ifq); \ 23769152Sjlemon _IF_PREPEND(ifq, m); \ 23869152Sjlemon IF_UNLOCK(ifq); \ 23969152Sjlemon} while (0) 24069152Sjlemon 24169152Sjlemon#define _IF_DEQUEUE(ifq, m) do { \ 24269152Sjlemon (m) = (ifq)->ifq_head; \ 24369152Sjlemon if (m) { \ 24469152Sjlemon if (((ifq)->ifq_head = (m)->m_nextpkt) == 0) \ 24569152Sjlemon (ifq)->ifq_tail = NULL; \ 24669152Sjlemon (m)->m_nextpkt = NULL; \ 24769152Sjlemon (ifq)->ifq_len--; \ 24869152Sjlemon } \ 24969152Sjlemon} while (0) 25069152Sjlemon 25169152Sjlemon#define IF_DEQUEUE(ifq, m) do { \ 25269152Sjlemon IF_LOCK(ifq); \ 25369152Sjlemon _IF_DEQUEUE(ifq, m); \ 25469152Sjlemon IF_UNLOCK(ifq); \ 25569152Sjlemon} while (0) 25669152Sjlemon 25769152Sjlemon#define IF_DRAIN(ifq) do { \ 25869152Sjlemon struct mbuf *m; \ 25969152Sjlemon IF_LOCK(ifq); \ 26069152Sjlemon for (;;) { \ 26169152Sjlemon _IF_DEQUEUE(ifq, m); \ 26269152Sjlemon if (m == NULL) \ 26369152Sjlemon break; \ 26469152Sjlemon m_freem(m); \ 26569152Sjlemon } \ 26669152Sjlemon IF_UNLOCK(ifq); \ 26769152Sjlemon} while (0) 26869152Sjlemon 26955205Speter#ifdef _KERNEL 27069152Sjlemon#define IF_HANDOFF(ifq, m, ifp) if_handoff(ifq, m, ifp, 0) 27169152Sjlemon#define IF_HANDOFF_ADJ(ifq, m, ifp, adj) if_handoff(ifq, m, ifp, adj) 27221259Swollman 27335210Sbdestatic __inline int 27469152Sjlemonif_handoff(struct ifqueue *ifq, struct mbuf *m, struct ifnet *ifp, int adjust) 27521259Swollman{ 27669152Sjlemon int active = 0; 27721259Swollman 27869152Sjlemon IF_LOCK(ifq); 27969152Sjlemon if (_IF_QFULL(ifq)) { 28069152Sjlemon _IF_DROP(ifq); 28169152Sjlemon IF_UNLOCK(ifq); 28269152Sjlemon m_freem(m); 28369152Sjlemon return (0); 28469152Sjlemon } 28569152Sjlemon if (ifp != NULL) { 28669152Sjlemon ifp->if_obytes += m->m_pkthdr.len + adjust; 28769152Sjlemon if (m->m_flags & M_MCAST) 28869152Sjlemon ifp->if_omcasts++; 28969152Sjlemon active = ifp->if_flags & IFF_OACTIVE; 29069152Sjlemon } 29169152Sjlemon _IF_ENQUEUE(ifq, m); 29269152Sjlemon IF_UNLOCK(ifq); 29369152Sjlemon if (ifp != NULL && !active) { 29469152Sjlemon if (ifp->if_mpsafe) { 29569152Sjlemon DROP_GIANT_NOSWITCH(); 29669152Sjlemon (*ifp->if_start)(ifp); 29769152Sjlemon PICKUP_GIANT(); 29869152Sjlemon } else { 29969152Sjlemon (*ifp->if_start)(ifp); 30069152Sjlemon } 30169152Sjlemon } 30269152Sjlemon return (1); 30321259Swollman} 30421259Swollman 30549459Sbrian/* 30649459Sbrian * 72 was chosen below because it is the size of a TCP/IP 30749459Sbrian * header (40) + the minimum mss (32). 30849459Sbrian */ 30949459Sbrian#define IF_MINMTU 72 31049459Sbrian#define IF_MAXMTU 65535 31149459Sbrian 31255205Speter#endif /* _KERNEL */ 31321259Swollman 31421259Swollman/* 31521259Swollman * The ifaddr structure contains information about one address 31621259Swollman * of an interface. They are maintained by the different address families, 31721259Swollman * are allocated and attached when an address is set, and are linked 31821259Swollman * together so all addresses for an interface can be located. 31921259Swollman */ 32021259Swollmanstruct ifaddr { 32121259Swollman struct sockaddr *ifa_addr; /* address of interface */ 32221259Swollman struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */ 32321259Swollman#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */ 32421259Swollman struct sockaddr *ifa_netmask; /* used to determine subnet */ 32567334Sjoe struct if_data if_data; /* not all members are meaningful */ 32621259Swollman struct ifnet *ifa_ifp; /* back-pointer to interface */ 32760938Sjake TAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */ 32821259Swollman void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */ 32921259Swollman __P((int, struct rtentry *, struct sockaddr *)); 33021259Swollman u_short ifa_flags; /* mostly rt_flags for cloning */ 33147254Spb u_int ifa_refcnt; /* references to this structure */ 33221259Swollman int ifa_metric; /* cost of going out this interface */ 33321259Swollman#ifdef notdef 33421259Swollman struct rtentry *ifa_rt; /* XXXX for ROUTETOIF ????? */ 33521259Swollman#endif 33628845Sjulian int (*ifa_claim_addr) /* check if an addr goes to this if */ 33728845Sjulian __P((struct ifaddr *, struct sockaddr *)); 33828845Sjulian 33921259Swollman}; 34021259Swollman#define IFA_ROUTE RTF_UP /* route installed */ 34121259Swollman 34253541Sshin/* for compatibility with other BSDs */ 34353541Sshin#define ifa_list ifa_link 34453541Sshin 34521404Swollman/* 34652904Sshin * The prefix structure contains information about one prefix 34752904Sshin * of an interface. They are maintained by the different address families, 34852904Sshin * are allocated and attached when an prefix or an address is set, 34953541Sshin * and are linked together so all prefixes for an interface can be located. 35052904Sshin */ 35152904Sshinstruct ifprefix { 35252904Sshin struct sockaddr *ifpr_prefix; /* prefix of interface */ 35352904Sshin struct ifnet *ifpr_ifp; /* back-pointer to interface */ 35460938Sjake TAILQ_ENTRY(ifprefix) ifpr_list; /* queue macro glue */ 35552904Sshin u_char ifpr_plen; /* prefix length in bits */ 35652904Sshin u_char ifpr_type; /* protocol dependent prefix type */ 35752904Sshin}; 35852904Sshin 35952904Sshin/* 36021404Swollman * Multicast address structure. This is analogous to the ifaddr 36121404Swollman * structure except that it keeps track of multicast addresses. 36221404Swollman * Also, the reference count here is a count of requests for this 36321404Swollman * address, not a count of pointers to this structure. 36421404Swollman */ 36521404Swollmanstruct ifmultiaddr { 36672084Sphk TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */ 36721434Swollman struct sockaddr *ifma_addr; /* address this membership is for */ 36821434Swollman struct sockaddr *ifma_lladdr; /* link-layer translation, if any */ 36921434Swollman struct ifnet *ifma_ifp; /* back-pointer to interface */ 37021434Swollman u_int ifma_refcount; /* reference count */ 37121434Swollman void *ifma_protospec; /* protocol-specific state, if any */ 37221404Swollman}; 37321404Swollman 37455205Speter#ifdef _KERNEL 37521259Swollman#define IFAFREE(ifa) \ 37646568Speter do { \ 37746568Speter if ((ifa)->ifa_refcnt <= 0) \ 37846568Speter ifafree(ifa); \ 37946568Speter else \ 38046568Speter (ifa)->ifa_refcnt--; \ 38146568Speter } while (0) 38221259Swollman 38383130Sjlemonstruct ifindex_entry { 38483130Sjlemon struct ifnet *ife_ifnet; 38583130Sjlemon struct ifaddr *ife_ifnet_addr; 38683130Sjlemon dev_t ife_dev; 38783130Sjlemon}; 38883130Sjlemon 38983130Sjlemon#define ifnet_byindex(idx) ifindex_table[(idx)].ife_ifnet 39083130Sjlemon#define ifaddr_byindex(idx) ifindex_table[(idx)].ife_ifnet_addr 39183130Sjlemon#define ifdev_byindex(idx) ifindex_table[(idx)].ife_dev 39283130Sjlemon 39321259Swollmanextern struct ifnethead ifnet; 39483130Sjlemonextern struct ifindex_entry *ifindex_table; 39521259Swollmanextern int ifqmaxlen; 39671791Speterextern struct ifnet *loif; /* first loopback interface */ 39721259Swollmanextern int if_index; 39821259Swollman 39963090Sarchievoid ether_ifattach __P((struct ifnet *, int)); 40063090Sarchievoid ether_ifdetach __P((struct ifnet *, int)); 40121259Swollmanvoid ether_input __P((struct ifnet *, struct ether_header *, struct mbuf *)); 40262143Sarchievoid ether_demux __P((struct ifnet *, struct ether_header *, struct mbuf *)); 40321259Swollmanint ether_output __P((struct ifnet *, 40421259Swollman struct mbuf *, struct sockaddr *, struct rtentry *)); 40562143Sarchieint ether_output_frame __P((struct ifnet *, struct mbuf *)); 40621259Swollmanint ether_ioctl __P((struct ifnet *, int, caddr_t)); 40721259Swollman 40853541Sshinint if_addmulti __P((struct ifnet *, struct sockaddr *, 40921434Swollman struct ifmultiaddr **)); 41021404Swollmanint if_allmulti __P((struct ifnet *, int)); 41121259Swollmanvoid if_attach __P((struct ifnet *)); 41221404Swollmanint if_delmulti __P((struct ifnet *, struct sockaddr *)); 41345720Spetervoid if_detach __P((struct ifnet *)); 41421259Swollmanvoid if_down __P((struct ifnet *)); 41541879Sphkvoid if_route __P((struct ifnet *, int flag, int fam)); 41664651Sarchieint if_setlladdr __P((struct ifnet *, const u_char *, int)); 41741879Sphkvoid if_unroute __P((struct ifnet *, int flag, int fam)); 41821259Swollmanvoid if_up __P((struct ifnet *)); 41921259Swollman/*void ifinit __P((void));*/ /* declared in systm.h for main() */ 42083366Sjulianint ifioctl __P((struct socket *, u_long, caddr_t, struct thread *)); 42121259Swollmanint ifpromisc __P((struct ifnet *, int)); 42279103Sbrooksstruct ifnet *ifunit __P((const char *)); 42352904Sshinstruct ifnet *if_withname __P((struct sockaddr *)); 42421259Swollman 42521259Swollmanint if_poll_recv_slow __P((struct ifnet *ifp, int *quotap)); 42621259Swollmanvoid if_poll_xmit_slow __P((struct ifnet *ifp, int *quotap)); 42721259Swollmanvoid if_poll_throttle __P((void)); 42821259Swollmanvoid if_poll_unthrottle __P((void *)); 42921259Swollmanvoid if_poll_init __P((void)); 43021259Swollmanvoid if_poll __P((void)); 43121259Swollman 43221259Swollmanstruct ifaddr *ifa_ifwithaddr __P((struct sockaddr *)); 43321259Swollmanstruct ifaddr *ifa_ifwithdstaddr __P((struct sockaddr *)); 43421259Swollmanstruct ifaddr *ifa_ifwithnet __P((struct sockaddr *)); 43521259Swollmanstruct ifaddr *ifa_ifwithroute __P((int, struct sockaddr *, 43621259Swollman struct sockaddr *)); 43721259Swollmanstruct ifaddr *ifaof_ifpforaddr __P((struct sockaddr *, struct ifnet *)); 43821259Swollmanvoid ifafree __P((struct ifaddr *)); 43921259Swollman 44053541Sshinstruct ifmultiaddr *ifmaof_ifpforaddr __P((struct sockaddr *, 44121434Swollman struct ifnet *)); 44260889Sarchieint if_simloop __P((struct ifnet *ifp, struct mbuf *m, int af, int hlen)); 44321434Swollman 44479103Sbrooksvoid if_clone_attach __P((struct if_clone *)); 44579103Sbrooksvoid if_clone_detach __P((struct if_clone *)); 44679103Sbrooks 44779103Sbrooksint if_clone_create __P((char *, int)); 44879103Sbrooksint if_clone_destroy __P((const char *)); 44979103Sbrooks 45055205Speter#endif /* _KERNEL */ 45121259Swollman 45221259Swollman#endif /* !_NET_IF_VAR_H_ */ 453