sys/net/if_atm.h

   1 /*      $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $       */
   2 /* $FreeBSD: src/sys/net/if_atm.h,v 1.4 1999/12/29 04:38:34 peter Exp $ */
   3 /* $DragonFly: src/sys/net/if_atm.h,v 1.8 2006/05/20 02:42:08 dillon Exp $ */
   4
   5 /*
   6  *
   7  * Copyright (c) 1996 Charles D. Cranor and Washington University.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by Charles D. Cranor and
  21  *      Washington University.
  22  * 4. The name of the author may not be used to endorse or promote products
  23  *    derived from this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 /*
  38  * net/if_atm.h
  39  */
  40
  41 #ifndef _NET_IF_ATM_H_
  42 #define _NET_IF_ATM_H_
  43
  44 #ifndef _SYS_TYPES_H_
  45 #include <sys/types.h>
  46 #endif
  47 #ifndef _NET_IF_H_
  48 #include <net/if.h>
  49 #endif
  50
  51
  52 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
  53 #define RTALLOC1(A,B)           rtalloc1((A), (B))
  54 #elif defined(__DragonFly__)
  55 #define RTALLOC1(A,B)   _rtlookup((A), (B), (B) ? RTL_DOCLONE : RTL_DONTCLONE)
  56 #elif defined(__FreeBSD__)
  57 #define RTALLOC1(A,B)           rtalloc1((A), (B), 0UL)
  58 #endif
  59
  60 /*
  61  * pseudo header for packet transmission
  62  */
  63 struct atm_pseudohdr {
  64   u_int8_t atm_ph[4];   /* flags+VPI+VCI1(msb)+VCI2(lsb) */
  65 };
  66
  67 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
  68 #define ATM_PH_VPI(X)   ((X)->atm_ph[1])
  69 #define ATM_PH_VCI(X)   ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
  70 #define ATM_PH_SETVCI(X,V) { \
  71         (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
  72         (X)->atm_ph[3] = ((V) & 0xff); \
  73 }
  74
  75 #define ATM_PH_AAL5    0x01     /* use AAL5? (0 == aal0) */
  76 #define ATM_PH_LLCSNAP 0x02     /* use the LLC SNAP encoding (iff aal5) */
  77
  78 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
  79 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
  80
  81 #define ATMMTU          9180    /* ATM MTU size for IP */
  82                                 /* XXX: could be 9188 with LLC/SNAP according
  83                                         to comer */
  84
  85 /* user's ioctl hook for raw atm mode */
  86 #define SIOCRAWATM      _IOWR('a', 122, int)    /* set driver's raw mode */
  87
  88 /* atm_pseudoioctl: turns on and off RX VCIs  [for internal use only!] */
  89 struct atm_pseudoioctl {
  90   struct atm_pseudohdr aph;
  91   void *rxhand;
  92 };
  93 #define SIOCATMENA      _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
  94 #define SIOCATMDIS      _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
  95
  96
  97 /*
  98  * XXX forget all the garbage in if_llc.h and do it the easy way
  99  */
 100
 101 #define ATMLLC_HDR "\252\252\3\0\0\0"
 102 struct atmllc {
 103   u_int8_t llchdr[6];   /* aa.aa.03.00.00.00 */
 104   u_int8_t type[2];     /* "ethernet" type */
 105 };
 106
 107 /* ATM_LLC macros: note type code in host byte order */
 108 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
 109 #define ATM_LLC_SETTYPE(X,V) { \
 110         (X)->type[1] = ((V) >> 8) & 0xff; \
 111         (X)->type[0] = ((V) & 0xff); \
 112 }
 113
 114 #ifdef _KERNEL
 115
 116 struct lwkt_serialize;
 117
 118 void    atm_ifattach (struct ifnet *, struct lwkt_serialize *);
 119 void    atm_input (struct ifnet *, struct atm_pseudohdr *,
 120                 struct mbuf *, void *);
 121 int     atm_output (struct ifnet *, struct mbuf *, struct sockaddr *,
 122                 struct rtentry *);
 123 #endif
 124
 125 #endif  /* _NET_IF_ATM_H_ */