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 #include <sys/appleapiopts.h>
  31 #ifdef KERNEL
  32 #ifdef __APPLE_API_PRIVATE
  33
  34 /*
  35  * structure for storing a linked list of multicast addresses
  36  * registered by this socket. May be variable in length.
  37  */
  38
  39 struct ndrv_multiaddr
  40 {
  41     struct ndrv_multiaddr*      next;
  42     struct sockaddr                     addr;
  43 };
  44
  45 /*
  46  * The cb is plugged into the socket (so_pcb), and the ifnet structure
  47  *  of BIND is plugged in here.
  48  * For now, it looks like a raw_cb up front...
  49  */
  50 struct ndrv_cb
  51 {
  52     struct ndrv_cb *nd_next;    /* Doubly-linked list */
  53         struct ndrv_cb *nd_prev;
  54         struct socket *nd_socket;       /* Back to the socket */
  55         u_int32_t nd_signature; /* Just double-checking */
  56         struct sockaddr_ndrv *nd_faddr;
  57         struct sockaddr_ndrv *nd_laddr;
  58         struct sockproto nd_proto;      /* proto family, protocol */
  59         int nd_descrcnt;                /* # elements in nd_dlist - Obsolete */
  60         TAILQ_HEAD(dlist, dlil_demux_desc) nd_dlist; /* Descr. list */
  61         struct ifnet *nd_if; /* obsolete, maintained for binary compatibility */
  62     u_long      nd_send_tag;
  63     u_long      nd_tag;
  64     u_long      nd_family;
  65     struct ndrv_multiaddr*      nd_multiaddrs;
  66     short       nd_unit;
  67 };
  68
  69 #define sotondrvcb(so)          ((struct ndrv_cb *)(so)->so_pcb)
  70 #define NDRV_SIGNATURE  0x4e445256 /* "NDRV" */
  71
  72 /* Nominal allocated space for NDRV sockets */
  73 #define NDRVSNDQ         8192
  74 #define NDRVRCVQ         8192
  75
  76 extern struct ndrv_cb ndrvl;            /* Head of controlblock list */
  77 #endif /* __APPLE_API_PRIVATE */
  78 #endif  /* KERNEL */
  79 #endif  /* _NET_NDRV_VAR_H */