BSD 4_3_Reno release

[unix-history] / usr / src / sys / net / if.h

diff --git a/usr/src/sys/net/if.h b/usr/src/sys/net/if.h
index 014784f..72a3976 100644 (file)
--- a/usr/src/sys/net/if.h
+++ b/usr/src/sys/net/if.h
@@ -1,9 +1,23 @@
 /*
 /*

- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
+ * All rights reserved.

  *
  *

- *     @(#)if.h        7.1 (Berkeley) %G%
+ * Redistribution is only permitted until one year after the first shipment
+ * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
+ * binary forms are permitted provided that: (1) source distributions retain
+ * this entire copyright notice and comment, and (2) distributions including
+ * binaries display the following acknowledgement:  This product includes
+ * software developed by the University of California, Berkeley and its
+ * contributors'' in the documentation or other materials provided with the
+ * distribution and in all advertising materials mentioning features or use
+ * of this software.  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.
+ * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *     @(#)if.h        7.9 (Berkeley) 6/28/90

  */
 
 /*
  */
 
 /*


@@ -30,12 +44,20 @@
  * routing and gateway routines maintaining information used to locate
  * interfaces.  These routines live in the files if.c and route.c
  */
  * routing and gateway routines maintaining information used to locate
  * 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

 
 /*
  * Structure defining a queue for a network interface.
  *
  * (Would like to call this struct ``if'', but C isn't PL/1.)
  */
 
 /*
  * Structure defining a queue for a network interface.
  *
  * (Would like to call this struct ``if'', but C isn't PL/1.)
  */

+

 struct ifnet {
        char    *if_name;               /* name, e.g. ``en'' or ``lo'' */
        short   if_unit;                /* sub-unit for lower level driver */
 struct ifnet {
        char    *if_name;               /* name, e.g. ``en'' or ``lo'' */
        short   if_unit;                /* sub-unit for lower level driver */


@@ -53,7 +75,9 @@ struct ifnet {
        } if_snd;                       /* output queue */
 /* procedure handles */
        int     (*if_init)();           /* init routine */
        } if_snd;                       /* output queue */
 /* procedure handles */
        int     (*if_init)();           /* init routine */

-       int     (*if_output)();         /* output 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 */
        int     (*if_ioctl)();          /* ioctl routine */
        int     (*if_reset)();          /* bus reset routine */
        int     (*if_watchdog)();       /* timer routine */


@@ -65,6 +89,19 @@ struct ifnet {
        int     if_collisions;          /* collisions on csma interfaces */
 /* end statistics */
        struct  ifnet *if_next;
        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 */

 };
 
 #define        IFF_UP          0x1             /* interface is up */
 };
 
 #define        IFF_UP          0x1             /* interface is up */


@@ -78,8 +115,11 @@ struct ifnet {
 /* next two not supported now, but reserved: */
 #define        IFF_PROMISC     0x100           /* receive all packets */
 #define        IFF_ALLMULTI    0x200           /* receive all multicast packets */
 /* 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 */
+

 /* flags set internally only: */
 /* flags set internally only: */

-#define        IFF_CANTCHANGE  (IFF_BROADCAST | IFF_POINTOPOINT | IFF_RUNNING)
+#define        IFF_CANTCHANGE  (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE)

 
 /*
  * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1)
 
 /*
  * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1)


@@ -90,53 +130,27 @@ struct ifnet {
 #define        IF_QFULL(ifq)           ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
 #define        IF_DROP(ifq)            ((ifq)->ifq_drops++)
 #define        IF_ENQUEUE(ifq, m) { \
 #define        IF_QFULL(ifq)           ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
 #define        IF_DROP(ifq)            ((ifq)->ifq_drops++)
 #define        IF_ENQUEUE(ifq, m) { \

-       (m)->m_act = 0; \
+       (m)->m_nextpkt = 0; \

        if ((ifq)->ifq_tail == 0) \
                (ifq)->ifq_head = m; \
        else \
        if ((ifq)->ifq_tail == 0) \
                (ifq)->ifq_head = m; \
        else \

-               (ifq)->ifq_tail->m_act = m; \
+               (ifq)->ifq_tail->m_nextpkt = m; \

        (ifq)->ifq_tail = m; \
        (ifq)->ifq_len++; \
 }
 #define        IF_PREPEND(ifq, m) { \
        (ifq)->ifq_tail = m; \
        (ifq)->ifq_len++; \
 }
 #define        IF_PREPEND(ifq, m) { \

-       (m)->m_act = (ifq)->ifq_head; \
+       (m)->m_nextpkt = (ifq)->ifq_head; \

        if ((ifq)->ifq_tail == 0) \
                (ifq)->ifq_tail = (m); \
        (ifq)->ifq_head = (m); \
        (ifq)->ifq_len++; \
 }
        if ((ifq)->ifq_tail == 0) \
                (ifq)->ifq_tail = (m); \
        (ifq)->ifq_head = (m); \
        (ifq)->ifq_len++; \
 }

-/*
- * Packets destined for level-1 protocol input routines
- * have a pointer to the receiving interface prepended to the data.
- * IF_DEQUEUEIF extracts and returns this pointer when dequeueing the packet.
- * IF_ADJ should be used otherwise to adjust for its presence.
- */
-#define        IF_ADJ(m) { \
-       (m)->m_off += sizeof(struct ifnet *); \
-       (m)->m_len -= sizeof(struct ifnet *); \
-       if ((m)->m_len == 0) { \
-               struct mbuf *n; \
-               MFREE((m), n); \
-               (m) = n; \
-       } \
-}
-#define        IF_DEQUEUEIF(ifq, m, ifp) { \
-       (m) = (ifq)->ifq_head; \
-       if (m) { \
-               if (((ifq)->ifq_head = (m)->m_act) == 0) \
-                       (ifq)->ifq_tail = 0; \
-               (m)->m_act = 0; \
-               (ifq)->ifq_len--; \
-               (ifp) = *(mtod((m), struct ifnet **)); \
-               IF_ADJ(m); \
-       } \
-}

 #define        IF_DEQUEUE(ifq, m) { \
        (m) = (ifq)->ifq_head; \
        if (m) { \
 #define        IF_DEQUEUE(ifq, m) { \
        (m) = (ifq)->ifq_head; \
        if (m) { \

-               if (((ifq)->ifq_head = (m)->m_act) == 0) \
+               if (((ifq)->ifq_head = (m)->m_nextpkt) == 0) \

                        (ifq)->ifq_tail = 0; \
                        (ifq)->ifq_tail = 0; \

-               (m)->m_act = 0; \
+               (m)->m_nextpkt = 0; \

                (ifq)->ifq_len--; \
        } \
 }
                (ifq)->ifq_len--; \
        } \
 }


@@ -151,17 +165,18 @@ struct ifnet {
  * together so all addresses for an interface can be located.
  */
 struct ifaddr {
  * together so all addresses for an interface can be located.
  */
 struct ifaddr {

-       struct  sockaddr ifa_addr;      /* address of interface */
-       union {
-               struct  sockaddr ifu_broadaddr;
-               struct  sockaddr ifu_dstaddr;
-       } ifa_ifu;
-#define        ifa_broadaddr   ifa_ifu.ifu_broadaddr   /* broadcast address */
-#define        ifa_dstaddr     ifa_ifu.ifu_dstaddr     /* other end of p-to-p link */
+       struct  sockaddr *ifa_addr;     /* address of interface */
+       struct  sockaddr *ifa_dstaddr;  /* other end of p-to-p link */
+#define        ifa_broadaddr   ifa_dstaddr     /* broadcast address interface */
+       struct  sockaddr *ifa_netmask;  /* used to determine subnet */

        struct  ifnet *ifa_ifp;         /* back-pointer to interface */
        struct  ifaddr *ifa_next;       /* next address for interface */
        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 */
+       u_short ifa_flags;              /* mostly rt_flags for cloning */
+       u_short ifa_llinfolen;          /* extra to malloc for link info */

 };
 };

-
+#define IFA_ROUTE      RTF_UP          /* route installed */

 /*
  * Interface request structure used for socket
  * ioctl's.  All interface ioctl's must have parameter
 /*
  * Interface request structure used for socket
  * ioctl's.  All interface ioctl's must have parameter


@@ -187,6 +202,13 @@ struct     ifreq {
 #define        ifr_data        ifr_ifru.ifru_data      /* for use by interface */
 };
 
 #define        ifr_data        ifr_ifru.ifru_data      /* for use by interface */
 };
 

+struct ifaliasreq {
+       char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
+       struct  sockaddr ifra_addr;
+       struct  sockaddr ifra_broadaddr;
+       struct  sockaddr ifra_mask;
+};
+

 /*
  * Structure used in SIOCGIFCONF request.
  * Used to retrieve interface configuration
 /*
  * Structure used in SIOCGIFCONF request.
  * Used to retrieve interface configuration