bsd/net/ndrv_var.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1997, 1998 Apple Computer, Inc. All Rights Reserved */
  23 /*
  24  *      @(#)ndrv.h      1.1 (MacOSX) 6/10/43
  25  * Justin Walker - 970604
  26  */
  27
  28 #ifndef _NET_NDRV_VAR_H
  29 #define _NET_NDRV_VAR_H
  30
  31 /*
  32  * The cb is plugged into the socket (so_pcb), and the ifnet structure
  33  *  of BIND is plugged in here.
  34  * For now, it looks like a raw_cb up front...
  35  */
  36 struct ndrv_cb
  37 {
  38     struct ndrv_cb *nd_next;    /* Doubly-linked list */
  39         struct ndrv_cb *nd_prev;
  40         struct socket *nd_socket;       /* Back to the socket */
  41         unsigned int nd_signature;      /* Just double-checking */
  42         struct sockaddr_ndrv *nd_faddr;
  43         struct sockaddr_ndrv *nd_laddr;
  44         struct sockproto nd_proto;      /* proto family, protocol */
  45         int nd_descrcnt;                /* # elements in nd_dlist - Obsolete */
  46         TAILQ_HEAD(dlist, dlil_demux_desc) nd_dlist; /* Descr. list */
  47         struct ifnet *nd_if;
  48     u_long      nd_send_tag;
  49     u_long      nd_tag;
  50     u_long      nd_family;
  51     short       nd_unit;
  52 };
  53
  54 #define sotondrvcb(so)          ((struct ndrv_cb *)(so)->so_pcb)
  55 #define NDRV_SIGNATURE  0x4e445256 /* "NDRV" */
  56
  57 /* Nominal allocated space for NDRV sockets */
  58 #define NDRVSNDQ         8192
  59 #define NDRVRCVQ         8192
  60
  61 #if KERNEL
  62 extern struct ndrv_cb ndrvl;            /* Head of controlblock list */
  63 #endif
  64 #endif  /* _NET_NDRV_VAR_H */