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/netnatm/natm.h

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    1 /*      $NetBSD: natm.h,v 1.5 2003/06/29 22:32:08 fvdl Exp $    */
    2 
    3 /*
    4  *
    5  * Copyright (c) 1996 Charles D. Cranor and Washington University.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by Charles D. Cranor and
   19  *      Washington University.
   20  * 4. The name of the author may not be used to endorse or promote products
   21  *    derived from this software without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   33  */
   34 
   35 #ifndef _NETNATM_NATM_H_
   36 #define _NETNATM_NATM_H_
   37 
   38 /*
   39  * natm.h: native mode atm
   40  */
   41 
   42 
   43 /*
   44  * supported protocols
   45  */
   46 
   47 #define PROTO_NATMAAL0          1
   48 #define PROTO_NATMAAL5          2       
   49 
   50 /*
   51  * sockaddr_natm
   52  */
   53 
   54 struct sockaddr_natm {
   55   u_int8_t      snatm_len;              /* length */
   56   u_int8_t      snatm_family;           /* AF_NATM */
   57   char          snatm_if[IFNAMSIZ];     /* interface name */
   58   u_int16_t     snatm_vci;              /* vci */
   59   u_int8_t      snatm_vpi;              /* vpi */
   60 };
   61 
   62 
   63 #if defined(__FreeBSD__) && defined(KERNEL)
   64 
   65 #ifndef _KERNEL
   66 #define _KERNEL
   67 #endif
   68 
   69 #define SPLSOFTNET() splnet()
   70 
   71 #elif defined(__NetBSD__) || defined(__OpenBSD__)
   72 
   73 #define SPLSOFTNET() splsoftnet()
   74 
   75 #endif
   76 
   77 #ifdef _KERNEL
   78 
   79 /*
   80  * natm protocol control block
   81  */
   82 
   83 struct natmpcb {
   84   LIST_ENTRY(natmpcb) pcblist;          /* list pointers */
   85   u_int npcb_inq;                       /* # of our pkts in proto q */
   86   struct socket *npcb_socket;           /* backpointer to socket */
   87   struct ifnet *npcb_ifp;               /* pointer to hardware */
   88   struct in_addr ipaddr;                /* remote IP address, if NPCB_IP */
   89   u_int16_t npcb_vci;                   /* VCI */
   90   u_int8_t npcb_vpi;                    /* VPI */
   91   u_int8_t npcb_flags;                  /* flags */
   92 };
   93 
   94 /* flags */
   95 #define NPCB_FREE       0x01            /* free (not on any list) */
   96 #define NPCB_CONNECTED  0x02            /* connected */
   97 #define NPCB_IP         0x04            /* used by IP */
   98 #define NPCB_DRAIN      0x08            /* destory as soon as inq == 0 */
   99 #define NPCB_RAW        0x10            /* in 'raw' mode? */
  100 
  101 /* flag arg to npcb_free */
  102 #define NPCB_REMOVE     0               /* remove from global list */
  103 #define NPCB_DESTROY    1               /* destroy and be free */
  104 
  105 /*
  106  * NPCB_RAWCC is a hack which applies to connections in 'raw' mode.   it 
  107  * is used to override the sbspace() macro when you *really* don't want 
  108  * to drop rcv data.   the recv socket buffer size is raised to this value.
  109  *
  110  * XXX: socket buffering needs to be looked at.
  111  */
  112 
  113 #define NPCB_RAWCC (1024*1024)          /* 1MB */
  114 
  115 LIST_HEAD(npcblist, natmpcb);
  116 
  117 /* global data structures */
  118 
  119 struct npcblist natm_pcbs;              /* global list of pcbs */
  120 extern  struct ifqueue natmintrq;       /* natm packet input queue */
  121 #define NATM_STAT
  122 #ifdef NATM_STAT
  123 extern  u_int natm_sodropcnt,
  124                 natm_sodropbytes;       /* account of droppage */
  125 extern  u_int natm_sookcnt,
  126                 natm_sookbytes;         /* account of ok */
  127 #endif
  128 
  129 /* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
  130 struct atm_rawioctl {
  131   struct natmpcb *npcb;
  132   int rawvalue;
  133 }; 
  134 #define SIOCXRAWATM     _IOWR('a', 125, struct atm_rawioctl)
  135 
  136 /* external functions */
  137 
  138 /* natm_pcb.c */
  139 struct  natmpcb *npcb_alloc __P((int));
  140 void    npcb_free __P((struct natmpcb *, int));
  141 struct  natmpcb *npcb_add __P((struct natmpcb *, struct ifnet *, int, int));
  142 
  143 /* natm.c */
  144 #if defined(__NetBSD__) || defined(__OpenBSD__)
  145 int     natm_usrreq __P((struct socket *, int, struct mbuf *,
  146                              struct mbuf *, struct mbuf *, struct proc *));
  147 #elif defined(__FreeBSD__)
  148 int     natm_usrreq __P((struct socket *, int, struct mbuf *,
  149                              struct mbuf *, struct mbuf *));
  150 #endif
  151 int     natm0_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
  152 int     natm5_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
  153 void    natmintr __P((void));
  154 
  155 #endif
  156 
  157 #endif /* _NETNATM_NATM_H_ */

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