bsd/net/ndrv.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_H
  29 #define _NET_NDRV_H
  30
  31 struct sockaddr_ndrv
  32 {       unsigned char snd_len;
  33         unsigned char snd_family;
  34         unsigned char snd_name[IFNAMSIZ]; /* from if.h */
  35 };
  36
  37 /*
  38  * The cb is plugged into the socket (so_pcb), and the ifnet structure
  39  *  of BIND is plugged in here.
  40  * For now, it looks like a raw_cb up front...
  41  */
  42 struct ndrv_cb
  43 {       struct ndrv_cb *nd_next;        /* Doubly-linked list */
  44         struct ndrv_cb *nd_prev;
  45         struct socket *nd_socket;       /* Back to the socket */
  46         unsigned int nd_signature;      /* Just double-checking */
  47         struct sockaddr_ndrv *nd_faddr;
  48         struct sockaddr_ndrv *nd_laddr;
  49         struct sockproto nd_proto;      /* proto family, protocol */
  50         int nd_descrcnt;                /* # elements in nd_dlist */
  51         TAILQ_HEAD(dlist, dlil_demux_desc) nd_dlist; /* Descr. list */
  52         struct ifnet *nd_if;
  53 };
  54
  55 #define sotondrvcb(so)          ((struct ndrv_cb *)(so)->so_pcb)
  56 #define NDRV_SIGNATURE  0x4e445256 /* "NDRV" */
  57
  58 /* Nominal allocated space for NDRV sockets */
  59 #define NDRVSNDQ         8192
  60 #define NDRVRCVQ         8192
  61
  62 /*
  63  * Support for user-mode protocol handlers
  64  */
  65
  66 /* Arg to socket options */
  67 struct ndrv_descr
  68 {       unsigned int nd_len;    /* Length of descriptor buffer, in bytes */
  69         unsigned char *nd_buf;  /* Descriptor buffer */
  70 };
  71
  72 #define NDRV_DMXSPEC    0x01    /* Get/Set (Add) a list of protocol specs */
  73 #define NDRV_DELDMXSPEC 0x02    /* Delete a list of protocol specs */
  74 #define NDRV_DMXSPECCNT 0x03    /* Return number of active protocol specs */
  75
  76 #if KERNEL
  77 extern struct ndrv_cb ndrvl;            /* Head of controlblock list */
  78 #endif
  79 #endif  /* _NET_NDRV_H */