bsd/net/if_atm.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*      $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $       */
  24 /* $FreeBSD: src/sys/net/if_atm.h,v 1.4 1999/12/29 04:38:34 peter Exp $ */
  25
  26 /*
  27  *
  28  * Copyright (c) 1996 Charles D. Cranor and Washington University.
  29  * All rights reserved.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions
  33  * are met:
  34  * 1. Redistributions of source code must retain the above copyright
  35  *    notice, this list of conditions and the following disclaimer.
  36  * 2. Redistributions in binary form must reproduce the above copyright
  37  *    notice, this list of conditions and the following disclaimer in the
  38  *    documentation and/or other materials provided with the distribution.
  39  * 3. All advertising materials mentioning features or use of this software
  40  *    must display the following acknowledgement:
  41  *      This product includes software developed by Charles D. Cranor and
  42  *      Washington University.
  43  * 4. The name of the author may not be used to endorse or promote products
  44  *    derived from this software without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  47  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  48  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  49  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  50  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  51  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  52  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  53  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  54  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  55  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  56  */
  57
  58 /*
  59  * net/if_atm.h
  60  */
  61
  62 #ifdef KERNEL_PRIVATE
  63 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
  64 #define RTALLOC1(A,B)           rtalloc1((A),(B))
  65 #elif defined(__FreeBSD__) || defined(__APPLE__)
  66 #define RTALLOC1(A,B)           rtalloc1((A),(B),0UL)
  67 #endif
  68 #endif /* KERNEL_PRIVATE */
  69
  70 /*
  71  * pseudo header for packet transmission
  72  */
  73 struct atm_pseudohdr {
  74   u_int8_t atm_ph[4];   /* flags+VPI+VCI1(msb)+VCI2(lsb) */
  75 };
  76
  77 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
  78 #define ATM_PH_VPI(X)   ((X)->atm_ph[1])
  79 #define ATM_PH_VCI(X)   ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
  80 #define ATM_PH_SETVCI(X,V) { \
  81         (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
  82         (X)->atm_ph[3] = ((V) & 0xff); \
  83 }
  84
  85 #define ATM_PH_AAL5    0x01     /* use AAL5? (0 == aal0) */
  86 #define ATM_PH_LLCSNAP 0x02     /* use the LLC SNAP encoding (iff aal5) */
  87
  88 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
  89 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
  90
  91 #define ATMMTU          9180    /* ATM MTU size for IP */
  92                                 /* XXX: could be 9188 with LLC/SNAP according
  93                                         to comer */
  94
  95 /* user's ioctl hook for raw atm mode */
  96 #define SIOCRAWATM      _IOWR('a', 122, int)    /* set driver's raw mode */
  97
  98 /* atm_pseudoioctl: turns on and off RX VCIs  [for internal use only!] */
  99 struct atm_pseudoioctl {
 100   struct atm_pseudohdr aph;
 101   void *rxhand;
 102 };
 103 #define SIOCATMENA      _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
 104 #define SIOCATMDIS      _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
 105
 106
 107 /*
 108  * XXX forget all the garbage in if_llc.h and do it the easy way
 109  */
 110
 111 #define ATMLLC_HDR "\252\252\3\0\0\0"
 112 struct atmllc {
 113   u_int8_t llchdr[6];   /* aa.aa.03.00.00.00 */
 114   u_int8_t type[2];     /* "ethernet" type */
 115 };
 116
 117 /* ATM_LLC macros: note type code in host byte order */
 118 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
 119 #define ATM_LLC_SETTYPE(X,V) { \
 120         (X)->type[1] = ((V) >> 8) & 0xff; \
 121         (X)->type[0] = ((V) & 0xff); \
 122 }
 123
 124 #ifdef KERNEL_PRIVATE
 125 void    atm_ifattach(struct ifnet *);
 126 void    atm_input(struct ifnet *, struct atm_pseudohdr *,
 127                 struct mbuf *, void *);
 128 int     atm_output(struct ifnet *, struct mbuf *, struct sockaddr *,
 129                 struct rtentry *);
 130 #endif /* KERNEL_PRIVATE */
 131