The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net/if_atm.h

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    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 _SYS_IOCCOM_H_
   48 #include <sys/ioccom.h>
   49 #endif
   50 #ifndef _NET_IF_H_
   51 #include <net/if.h>
   52 #endif
   53 
   54 
   55 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
   56 #define RTALLOC1(A,B)           rtalloc1((A), (B))
   57 #elif defined(__DragonFly__)
   58 #define RTALLOC1(A,B)   _rtlookup((A), (B), (B) ? RTL_DOCLONE : RTL_DONTCLONE)
   59 #elif defined(__FreeBSD__)
   60 #define RTALLOC1(A,B)           rtalloc1((A), (B), 0UL)
   61 #endif
   62 
   63 /*
   64  * pseudo header for packet transmission
   65  */
   66 struct atm_pseudohdr {
   67   u_int8_t atm_ph[4];   /* flags+VPI+VCI1(msb)+VCI2(lsb) */
   68 };
   69 
   70 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
   71 #define ATM_PH_VPI(X)   ((X)->atm_ph[1])
   72 #define ATM_PH_VCI(X)   ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
   73 #define ATM_PH_SETVCI(X,V) { \
   74         (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
   75         (X)->atm_ph[3] = ((V) & 0xff); \
   76 }
   77 
   78 #define ATM_PH_AAL5    0x01     /* use AAL5? (0 == aal0) */
   79 #define ATM_PH_LLCSNAP 0x02     /* use the LLC SNAP encoding (iff aal5) */
   80 
   81 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
   82 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
   83 
   84 #define ATMMTU          9180    /* ATM MTU size for IP */
   85                                 /* XXX: could be 9188 with LLC/SNAP according
   86                                         to comer */
   87 
   88 /* user's ioctl hook for raw atm mode */
   89 #define SIOCRAWATM      _IOWR('a', 122, int)    /* set driver's raw mode */
   90 
   91 /* atm_pseudoioctl: turns on and off RX VCIs  [for internal use only!] */
   92 struct atm_pseudoioctl {
   93   struct atm_pseudohdr aph;
   94   void *rxhand;
   95 };
   96 #define SIOCATMENA      _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
   97 #define SIOCATMDIS      _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
   98 
   99 
  100 /*
  101  * XXX forget all the garbage in if_llc.h and do it the easy way
  102  */
  103 
  104 #define ATMLLC_HDR "\252\252\3\0\0\0"
  105 struct atmllc {
  106   u_int8_t llchdr[6];   /* aa.aa.03.00.00.00 */
  107   u_int8_t type[2];     /* "ethernet" type */
  108 };
  109 
  110 /* ATM_LLC macros: note type code in host byte order */
  111 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
  112 #define ATM_LLC_SETTYPE(X,V) { \
  113         (X)->type[1] = ((V) >> 8) & 0xff; \
  114         (X)->type[0] = ((V) & 0xff); \
  115 }
  116 
  117 #ifdef _KERNEL
  118 
  119 struct lwkt_serialize;
  120 
  121 void    atm_ifattach (struct ifnet *, struct lwkt_serialize *);
  122 void    atm_input (struct ifnet *, struct atm_pseudohdr *,
  123                 struct mbuf *, void *);
  124 int     atm_output (struct ifnet *, struct mbuf *, struct sockaddr *, 
  125                 struct rtentry *);
  126 #endif
  127 
  128 #endif  /* _NET_IF_ATM_H_ */

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