bsd/net/if_atm.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_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. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*      $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $       */
  29 /* $FreeBSD: src/sys/net/if_atm.h,v 1.4 1999/12/29 04:38:34 peter Exp $ */
  30
  31 /*
  32  *
  33  * Copyright (c) 1996 Charles D. Cranor and Washington University.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. All advertising materials mentioning features or use of this software
  45  *    must display the following acknowledgement:
  46  *      This product includes software developed by Charles D. Cranor and
  47  *      Washington University.
  48  * 4. The name of the author may not be used to endorse or promote products
  49  *    derived from this software without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  52  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  53  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  54  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  55  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  56  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  60  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  */
  62
  63 /*
  64  * net/if_atm.h
  65  */
  66
  67 #ifdef KERNEL_PRIVATE
  68 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
  69 #define RTALLOC1(A,B)           rtalloc1((A),(B))
  70 #elif defined(__FreeBSD__) || defined(__APPLE__)
  71 #define RTALLOC1(A,B)           rtalloc1((A),(B),0UL)
  72 #endif
  73 #endif /* KERNEL_PRIVATE */
  74
  75 /*
  76  * pseudo header for packet transmission
  77  */
  78 struct atm_pseudohdr {
  79   u_int8_t atm_ph[4];   /* flags+VPI+VCI1(msb)+VCI2(lsb) */
  80 };
  81
  82 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
  83 #define ATM_PH_VPI(X)   ((X)->atm_ph[1])
  84 #define ATM_PH_VCI(X)   ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
  85 #define ATM_PH_SETVCI(X,V) { \
  86         (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
  87         (X)->atm_ph[3] = ((V) & 0xff); \
  88 }
  89
  90 #define ATM_PH_AAL5    0x01     /* use AAL5? (0 == aal0) */
  91 #define ATM_PH_LLCSNAP 0x02     /* use the LLC SNAP encoding (iff aal5) */
  92
  93 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
  94 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
  95
  96 #define ATMMTU          9180    /* ATM MTU size for IP */
  97                                 /* XXX: could be 9188 with LLC/SNAP according
  98                                         to comer */
  99
 100 /* user's ioctl hook for raw atm mode */
 101 #define SIOCRAWATM      _IOWR('a', 122, int)    /* set driver's raw mode */
 102
 103 /* atm_pseudoioctl: turns on and off RX VCIs  [for internal use only!] */
 104 struct atm_pseudoioctl {
 105   struct atm_pseudohdr aph;
 106   void *rxhand;
 107 };
 108 #define SIOCATMENA      _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
 109 #define SIOCATMDIS      _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
 110
 111
 112 /*
 113  * XXX forget all the garbage in if_llc.h and do it the easy way
 114  */
 115
 116 #define ATMLLC_HDR "\252\252\3\0\0\0"
 117 struct atmllc {
 118   u_int8_t llchdr[6];   /* aa.aa.03.00.00.00 */
 119   u_int8_t type[2];     /* "ethernet" type */
 120 };
 121
 122 /* ATM_LLC macros: note type code in host byte order */
 123 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
 124 #define ATM_LLC_SETTYPE(X,V) { \
 125         (X)->type[1] = ((V) >> 8) & 0xff; \
 126         (X)->type[0] = ((V) & 0xff); \
 127 }
 128
 129 #ifdef KERNEL_PRIVATE
 130 void    atm_ifattach(struct ifnet *);
 131 void    atm_input(struct ifnet *, struct atm_pseudohdr *,
 132                 struct mbuf *, void *);
 133 int     atm_output(struct ifnet *, struct mbuf *, struct sockaddr *,
 134                 struct rtentry *);
 135 #endif /* KERNEL_PRIVATE */
 136