bsd/net/if_atm.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 /*      $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $       */
  23
  24 /*
  25  *
  26  * Copyright (c) 1996 Charles D. Cranor and Washington University.
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by Charles D. Cranor and
  40  *      Washington University.
  41  * 4. The name of the author may not be used to endorse or promote products
  42  *    derived from this software without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  45  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  46  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  47  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  48  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  49  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  50  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  51  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  52  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  53  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  54  */
  55
  56 /*
  57  * net/if_atm.h
  58  */
  59
  60
  61 #ifndef NO_ATM_PVCEXT
  62 /*
  63  * ATM_PVCEXT enables PVC extention: VP/VC shaping
  64  * and PVC shadow interfaces.
  65  */
  66 #define ATM_PVCEXT      /* enable pvc extention */
  67 #endif
  68
  69 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
  70 #define RTALLOC1(A,B)           rtalloc1((A),(B))
  71 #elif defined(__FreeBSD__)
  72 #define RTALLOC1(A,B)           rtalloc1((A),(B),0UL)
  73 #endif
  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 #if ATM_PVCEXT
  94 #define ATM_PH_INERNAL  0x20    /* reserve for kernel internal use */
  95 #endif
  96 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
  97 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
  98
  99 #define ATMMTU          9180    /* ATM MTU size for IP */
 100                                 /* XXX: could be 9188 with LLC/SNAP according
 101                                         to comer */
 102
 103 /* user's ioctl hook for raw atm mode */
 104 #define SIOCRAWATM      _IOWR('a', 122, int)    /* set driver's raw mode */
 105
 106 /* atm_pseudoioctl: turns on and off RX VCIs  [for internal use only!] */
 107 struct atm_pseudoioctl {
 108   struct atm_pseudohdr aph;
 109   void *rxhand;
 110 };
 111 #define SIOCATMENA      _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
 112 #define SIOCATMDIS      _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
 113
 114 #if ATM_PVCEXT
 115
 116 /* structure to control PVC transmitter */
 117 struct pvctxreq {
 118     /* first entry must be compatible with struct ifreq */
 119     char pvc_ifname[IFNAMSIZ];          /* if name, e.g. "en0" */
 120     struct atm_pseudohdr pvc_aph;       /* (flags) + vpi:vci */
 121     struct atm_pseudohdr pvc_joint;     /* for vp shaping: another vc
 122                                            to share the shaper */
 123     int pvc_pcr;                        /* peak cell rate (shaper value) */
 124 };
 125
 126 /* use ifioctl for now */
 127 #define SIOCSPVCTX      _IOWR('i', 95, struct pvctxreq)
 128 #define SIOCGPVCTX      _IOWR('i', 96, struct pvctxreq)
 129 #define SIOCSPVCSIF     _IOWR('i', 97, struct ifreq)
 130 #define SIOCGPVCSIF     _IOWR('i', 98, struct ifreq)
 131
 132 #ifdef KERNEL
 133 #define ATM_PH_PVCSIF   ATM_PH_INERNAL  /* pvc shadow interface */
 134 #endif
 135 #endif /* ATM_PVCEXT */
 136
 137 /*
 138  * XXX forget all the garbage in if_llc.h and do it the easy way
 139  */
 140
 141 #define ATMLLC_HDR "\252\252\3\0\0\0"
 142 struct atmllc {
 143   u_int8_t llchdr[6];   /* aa.aa.03.00.00.00 */
 144   u_int8_t type[2];     /* "ethernet" type */
 145 };
 146
 147 /* ATM_LLC macros: note type code in host byte order */
 148 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
 149 #define ATM_LLC_SETTYPE(X,V) { \
 150         (X)->type[1] = ((V) >> 8) & 0xff; \
 151         (X)->type[0] = ((V) & 0xff); \
 152 }
 153
 154 #ifdef KERNEL
 155 void    atm_ifattach __P((struct ifnet *));
 156 void    atm_input __P((struct ifnet *, struct atm_pseudohdr *,
 157                 struct mbuf *, void *));
 158 int     atm_output __P((struct ifnet *, struct mbuf *, struct sockaddr *,
 159                 struct rtentry *));
 160 #endif
 161 #if ATM_PVCEXT
 162 char *shadow2if __P((char *));
 163 #ifdef KERNEL
 164 struct ifnet *pvc_attach __P((struct ifnet *));
 165 int pvc_setaph __P((struct ifnet *, struct atm_pseudohdr *));
 166 #endif
 167 #endif