FreeBSD/Linux Kernel Cross Reference
sys/netnatm/natm.h

     /*      $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $   */
     /* $FreeBSD: releng/5.0/sys/netnatm/natm.h 92745 2002-03-20 02:39:27Z alfred $ */
     
     /*
      *
      * Copyright (c) 1996 Charles D. Cranor and Washington University.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Charles D. Cranor and
     *      Washington University.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * natm.h: native mode atm
     */
    
    
    /*
     * supported protocols
     */
    
    #define PROTO_NATMAAL0          1
    #define PROTO_NATMAAL5          2       
    
    /*
     * sockaddr_natm
     */
    
    struct sockaddr_natm {
      u_int8_t      snatm_len;              /* length */
      u_int8_t      snatm_family;           /* AF_NATM */
      char          snatm_if[IFNAMSIZ];     /* interface name */
      u_int16_t     snatm_vci;              /* vci */
      u_int8_t      snatm_vpi;              /* vpi */
    };
    
    
    #if defined(__FreeBSD__) && defined(_KERNEL)
    
    #define SPLSOFTNET() splnet()
    
    #elif defined(__NetBSD__) || defined(__OpenBSD__)
    
    #define SPLSOFTNET() splsoftnet()
    
    #endif
    
    #ifdef _KERNEL
    
    /*
     * natm protocol control block
     */
    
    struct natmpcb {
      LIST_ENTRY(natmpcb) pcblist;          /* list pointers */
      u_int npcb_inq;                       /* # of our pkts in proto q */
      struct socket *npcb_socket;           /* backpointer to socket */
      struct ifnet *npcb_ifp;               /* pointer to hardware */
      struct in_addr ipaddr;                /* remote IP address, if APCB_IP */
      u_int16_t npcb_vci;                   /* VCI */
      u_int8_t npcb_vpi;                    /* VPI */
      u_int8_t npcb_flags;                  /* flags */
    };
    
    /* flags */
    #define NPCB_FREE       0x01            /* free (not on any list) */
    #define NPCB_CONNECTED  0x02            /* connected */
    #define NPCB_IP         0x04            /* used by IP */
    #define NPCB_DRAIN      0x08            /* destory as soon as inq == 0 */
    #define NPCB_RAW        0x10            /* in 'raw' mode? */
    
    /* flag arg to npcb_free */
    #define NPCB_REMOVE     0               /* remove from global list */
    #define NPCB_DESTROY    1               /* destroy and be free */
    
    /*
    * NPCB_RAWCC is a hack which applies to connections in 'raw' mode.   it 
    * is used to override the sbspace() macro when you *really* don't want 
    * to drop rcv data.   the recv socket buffer size is raised to this value.
    *
    * XXX: socket buffering needs to be looked at.
    */
   
   #define NPCB_RAWCC (1024*1024)          /* 1MB */
   
   LIST_HEAD(npcblist, natmpcb);
   
   /* global data structures */
   
   extern struct npcblist natm_pcbs;       /* global list of pcbs */
   extern  struct ifqueue natmintrq;       /* natm packet input queue */
   #define NATM_STAT
   #ifdef NATM_STAT
   extern  u_int natm_sodropcnt,
                   natm_sodropbytes;       /* account of droppage */
   extern  u_int natm_sookcnt,
                   natm_sookbytes;         /* account of ok */
   #endif
   
   /* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
   struct atm_rawioctl {
     struct natmpcb *npcb;
     int rawvalue;
   }; 
   #define SIOCXRAWATM     _IOWR('a', 125, struct atm_rawioctl)
   
   /* external functions */
   
   /* natm_pcb.c */
   struct  natmpcb *npcb_alloc(int);
   void    npcb_free(struct natmpcb *, int);
   struct  natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int);
   
   /* natm.c */
   #if defined(__NetBSD__) || defined(__OpenBSD__)
   int     natm_usrreq(struct socket *, int, struct mbuf *,
                                struct mbuf *, struct mbuf *, struct proc *);
   #elif defined(__FreeBSD__)
   #if __FreeBSD__ > 2
   /*
    * FreeBSD new usrreqs style appeared since 2.2.  compatibility to old style
    * has gone since 3.0.
    */
   #define FREEBSD_USRREQS
   extern struct pr_usrreqs natm_usrreqs;
   #else /* !( __FreeBSD__ > 2) */
   int     natm_usrreq(struct socket *, int, struct mbuf *,
                                struct mbuf *, struct mbuf *);
   #endif /* !( __FreeBSD__ > 2) */
   #endif
   int     natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t);
   int     natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t);
   void    natmintr(void);
   
   #endif

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