/*
- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1982, 1986, 1989, 1993
+ * The Regents of the University of California. All rights reserved.
*
- * %sccs.include.redist.c%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
*
- * @(#)if.h 7.12 (Berkeley) %G%
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)if.h 8.3 (Berkeley) 2/9/95
*/
/*
* received from its medium.
*
* Output occurs when the routine if_output is called, with three parameters:
- * (*ifp->if_output)(ifp, m, dst)
+ * (*ifp->if_output)(ifp, m, dst, rt)
* Here m is the mbuf chain to be sent and dst is the destination address.
* The output routine encapsulates the supplied datagram if necessary,
* and then transmits it on its medium.
* interfaces. These routines live in the files if.c and route.c
*/
#ifndef _TIME_ /* XXX fast fix for SNMP, going away soon */
-#ifdef KERNEL
-#include "../sys/time.h"
-#else
#include <sys/time.h>
#endif
-#endif
+#ifdef __STDC__
+/*
+ * Forward structure declarations for function prototypes [sic].
+ */
+struct mbuf;
+struct proc;
+struct rtentry;
+struct socket;
+struct ether_header;
+#endif
+/*
+ * Structure describing information about an interface
+ * which may be of interest to management entities.
+ */
/*
* Structure defining a queue for a network interface.
*
struct ifnet {
char *if_name; /* name, e.g. ``en'' or ``lo'' */
+ struct ifnet *if_next; /* all struct ifnets are chained */
+ struct ifaddr *if_addrlist; /* linked list of addresses per if */
+ int if_pcount; /* number of promiscuous listeners */
+ caddr_t if_bpf; /* packet filter structure */
+ u_short if_index; /* numeric abbreviation for this if */
short if_unit; /* sub-unit for lower level driver */
- short if_mtu; /* maximum transmission unit */
- short if_flags; /* up/down, broadcast, etc. */
short if_timer; /* time 'til if_watchdog called */
- int if_metric; /* routing metric (external only) */
- struct ifaddr *if_addrlist; /* linked list of addresses per if */
+ short if_flags; /* up/down, broadcast, etc. */
+ struct if_data {
+/* generic interface information */
+ u_char ifi_type; /* ethernet, tokenring, etc */
+ u_char ifi_addrlen; /* media address length */
+ u_char ifi_hdrlen; /* media header length */
+ u_long ifi_mtu; /* maximum transmission unit */
+ u_long ifi_metric; /* routing metric (external only) */
+ u_long ifi_baudrate; /* linespeed */
+/* volatile statistics */
+ u_long ifi_ipackets; /* packets received on interface */
+ u_long ifi_ierrors; /* input errors on interface */
+ u_long ifi_opackets; /* packets sent on interface */
+ u_long ifi_oerrors; /* output errors on interface */
+ u_long ifi_collisions; /* collisions on csma interfaces */
+ u_long ifi_ibytes; /* total number of octets received */
+ u_long ifi_obytes; /* total number of octets sent */
+ u_long ifi_imcasts; /* packets received via multicast */
+ u_long ifi_omcasts; /* packets sent via multicast */
+ u_long ifi_iqdrops; /* dropped on input, this interface */
+ u_long ifi_noproto; /* destined for unsupported protocol */
+ struct timeval ifi_lastchange;/* last updated */
+ } if_data;
+/* procedure handles */
+ int (*if_init) /* init routine */
+ __P((int));
+ int (*if_output) /* output routine (enqueue) */
+ __P((struct ifnet *, struct mbuf *, struct sockaddr *,
+ struct rtentry *));
+ int (*if_start) /* initiate output routine */
+ __P((struct ifnet *));
+ int (*if_done) /* output complete routine */
+ __P((struct ifnet *)); /* (XXX not used; fake prototype) */
+ int (*if_ioctl) /* ioctl routine */
+ __P((struct ifnet *, u_long, caddr_t));
+ int (*if_reset)
+ __P((int)); /* new autoconfig will permit removal */
+ int (*if_watchdog) /* timer routine */
+ __P((int));
struct ifqueue {
struct mbuf *ifq_head;
struct mbuf *ifq_tail;
int ifq_maxlen;
int ifq_drops;
} if_snd; /* output queue */
-/* procedure handles */
- int (*if_init)(); /* init routine */
- int (*if_output)(); /* output routine (enqueue) */
- int (*if_start)(); /* initiate output routine */
- int (*if_done)(); /* output complete routine */
- int (*if_ioctl)(); /* ioctl routine */
- int (*if_reset)(); /* bus reset routine */
- int (*if_watchdog)(); /* timer routine */
-/* generic interface statistics */
- int if_ipackets; /* packets received on interface */
- int if_ierrors; /* input errors on interface */
- int if_opackets; /* packets sent on interface */
- int if_oerrors; /* output errors on interface */
- int if_collisions; /* collisions on csma interfaces */
-/* end statistics */
- struct ifnet *if_next;
- u_char if_type; /* ethernet, tokenring, etc */
- u_char if_addrlen; /* media address length */
- u_char if_hdrlen; /* media header length */
- u_char if_index; /* numeric abbreviation for this if */
-/* more statistics here to avoid recompiling netstat */
- struct timeval if_lastchange; /* last updated */
- int if_ibytes; /* total number of octets received */
- int if_obytes; /* total number of octets sent */
- int if_imcasts; /* packets received via multicast */
- int if_omcasts; /* packets sent via multicast */
- int if_iqdrops; /* dropped on input, this interface */
- int if_noproto; /* destined for unsupported protocol */
- int if_baudrate; /* linespeed */
- int if_pcount; /* number of promiscuous listeners */
};
+#define if_mtu if_data.ifi_mtu
+#define if_type if_data.ifi_type
+#define if_addrlen if_data.ifi_addrlen
+#define if_hdrlen if_data.ifi_hdrlen
+#define if_metric if_data.ifi_metric
+#define if_baudrate if_data.ifi_baudrate
+#define if_ipackets if_data.ifi_ipackets
+#define if_ierrors if_data.ifi_ierrors
+#define if_opackets if_data.ifi_opackets
+#define if_oerrors if_data.ifi_oerrors
+#define if_collisions if_data.ifi_collisions
+#define if_ibytes if_data.ifi_ibytes
+#define if_obytes if_data.ifi_obytes
+#define if_imcasts if_data.ifi_imcasts
+#define if_omcasts if_data.ifi_omcasts
+#define if_iqdrops if_data.ifi_iqdrops
+#define if_noproto if_data.ifi_noproto
+#define if_lastchange if_data.ifi_lastchange
#define IFF_UP 0x1 /* interface is up */
#define IFF_BROADCAST 0x2 /* broadcast address valid */
#define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
#define IFF_RUNNING 0x40 /* resources allocated */
#define IFF_NOARP 0x80 /* no address resolution protocol */
-/* next two not supported now, but reserved: */
#define IFF_PROMISC 0x100 /* receive all packets */
#define IFF_ALLMULTI 0x200 /* receive all multicast packets */
#define IFF_OACTIVE 0x400 /* transmission in progress */
#define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
-#define IFF_LLC0 0x1000 /* per link layer defined bit */
-#define IFF_LLC1 0x2000 /* per link layer defined bit */
-#define IFF_LLC2 0x4000 /* per link layer defined bit */
+#define IFF_LINK0 0x1000 /* per link layer defined bit */
+#define IFF_LINK1 0x2000 /* per link layer defined bit */
+#define IFF_LINK2 0x4000 /* per link layer defined bit */
+#define IFF_MULTICAST 0x8000 /* supports multicast */
/* flags set internally only: */
#define IFF_CANTCHANGE \
- (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|IFF_SIMPLEX)
+ (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
+ IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
/*
* Output queues (ifp->if_snd) and internetwork datagram level (pup level 1)
struct sockaddr *ifa_netmask; /* used to determine subnet */
struct ifnet *ifa_ifp; /* back-pointer to interface */
struct ifaddr *ifa_next; /* next address for interface */
- int (*ifa_rtrequest)(); /* check or clean routes (+ or -)'d */
- struct rtentry *ifa_rt; /* ??? for ROUTETOIF */
+ void (*ifa_rtrequest)(); /* check or clean routes (+ or -)'d */
u_short ifa_flags; /* mostly rt_flags for cloning */
- u_short ifa_llinfolen; /* extra to malloc for link info */
+ short ifa_refcnt; /* extra to malloc for link info */
+ int ifa_metric; /* cost of going out this interface */
+#ifdef notdef
+ struct rtentry *ifa_rt; /* XXXX for ROUTETOIF ????? */
+#endif
};
-#define IFA_ROUTE RTF_UP /* route installed */
+#define IFA_ROUTE RTF_UP /* route installed */
+
+/*
+ * Message format for use in obtaining information about interfaces
+ * from getkerninfo and the routing socket
+ */
+struct if_msghdr {
+ u_short ifm_msglen; /* to skip over non-understood messages */
+ u_char ifm_version; /* future binary compatability */
+ u_char ifm_type; /* message type */
+ int ifm_addrs; /* like rtm_addrs */
+ int ifm_flags; /* value of if_flags */
+ u_short ifm_index; /* index for associated ifp */
+ struct if_data ifm_data;/* statistics and other data about if */
+};
+
+/*
+ * Message format for use in obtaining information about interface addresses
+ * from getkerninfo and the routing socket
+ */
+struct ifa_msghdr {
+ u_short ifam_msglen; /* to skip over non-understood messages */
+ u_char ifam_version; /* future binary compatability */
+ u_char ifam_type; /* message type */
+ int ifam_addrs; /* like rtm_addrs */
+ int ifam_flags; /* value of ifa_flags */
+ u_short ifam_index; /* index for associated ifp */
+ int ifam_metric; /* value of ifa_metric */
+};
+
/*
* Interface request structure used for socket
* ioctl's. All interface ioctl's must have parameter
#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
};
-#ifdef KERNEL
-#include "../net/if_arp.h"
-struct ifqueue rawintrq; /* raw packet input queue */
-struct ifnet *ifnet;
-struct ifaddr *ifa_ifwithaddr(), *ifa_ifwithnet();
-struct ifaddr *ifa_ifwithdstaddr();
-#else KERNEL
#include <net/if_arp.h>
-#endif KERNEL
+
+#ifdef KERNEL
+#define IFAFREE(ifa) \
+ if ((ifa)->ifa_refcnt <= 0) \
+ ifafree(ifa); \
+ else \
+ (ifa)->ifa_refcnt--;
+
+struct ifnet *ifnet;
+
+void ether_ifattach __P((struct ifnet *));
+void ether_input __P((struct ifnet *, struct ether_header *, struct mbuf *));
+int ether_output __P((struct ifnet *,
+ struct mbuf *, struct sockaddr *, struct rtentry *));
+char *ether_sprintf __P((u_char *));
+
+void if_attach __P((struct ifnet *));
+void if_down __P((struct ifnet *));
+void if_qflush __P((struct ifqueue *));
+void if_slowtimo __P((void *));
+void if_up __P((struct ifnet *));
+#ifdef vax
+void ifubareset __P((int));
+#endif
+int ifconf __P((int, caddr_t));
+void ifinit __P((void));
+int ifioctl __P((struct socket *, u_long, caddr_t, struct proc *));
+int ifpromisc __P((struct ifnet *, int));
+struct ifnet *ifunit __P((char *));
+
+struct ifaddr *ifa_ifwithaddr __P((struct sockaddr *));
+struct ifaddr *ifa_ifwithaf __P((int));
+struct ifaddr *ifa_ifwithdstaddr __P((struct sockaddr *));
+struct ifaddr *ifa_ifwithnet __P((struct sockaddr *));
+struct ifaddr *ifa_ifwithroute __P((int, struct sockaddr *,
+ struct sockaddr *));
+struct ifaddr *ifaof_ifpforaddr __P((struct sockaddr *, struct ifnet *));
+void ifafree __P((struct ifaddr *));
+void link_rtrequest __P((int, struct rtentry *, struct sockaddr *));
+
+int loioctl __P((struct ifnet *, u_long, caddr_t));
+void loopattach __P((int));
+int looutput __P((struct ifnet *,
+ struct mbuf *, struct sockaddr *, struct rtentry *));
+void lortrequest __P((int, struct rtentry *, struct sockaddr *));
+#endif