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 1.1 1996/07/04 03:20:12 chuck Exp $   */
    2 /* $FreeBSD$ */
    3 
    4 /*-
    5  *
    6  * Copyright (c) 1996 Charles D. Cranor and Washington University.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed by Charles D. Cranor and
   20  *      Washington University.
   21  * 4. The name of the author may not be used to endorse or promote products
   22  *    derived from this software without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   27  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   34  */
   35 
   36 /*
   37  * natm.h: native mode atm
   38  */
   39 
   40 /*
   41  * supported protocols
   42  */
   43 #define PROTO_NATMAAL0          1
   44 #define PROTO_NATMAAL5          2       
   45 
   46 /*
   47  * sockaddr_natm
   48  */
   49 
   50 struct sockaddr_natm {
   51         unsigned char   snatm_len;              /* length */
   52         sa_family_t     snatm_family;           /* AF_NATM */
   53         char            snatm_if[IFNAMSIZ];     /* interface name */
   54         u_int16_t       snatm_vci;              /* vci */
   55         u_int8_t        snatm_vpi;              /* vpi */
   56 };
   57 
   58 #if defined(__FreeBSD__) && defined(_KERNEL)
   59 
   60 #define SPLSOFTNET() splnet()
   61 
   62 #elif defined(__NetBSD__) || defined(__OpenBSD__)
   63 
   64 #define SPLSOFTNET() splsoftnet()
   65 
   66 #endif
   67 
   68 #ifdef _KERNEL
   69 
   70 /*
   71  * natm protocol control block
   72  */
   73 struct natmpcb {
   74         LIST_ENTRY(natmpcb) pcblist;    /* list pointers */
   75         u_int           npcb_inq;       /* # of our pkts in proto q */
   76         struct socket   *npcb_socket;   /* backpointer to socket */
   77         struct ifnet    *npcb_ifp;      /* pointer to hardware */
   78         struct in_addr  ipaddr;         /* remote IP address, if APCB_IP */
   79         u_int16_t       npcb_vci;       /* VCI */
   80         u_int8_t        npcb_vpi;       /* VPI */
   81         u_int8_t        npcb_flags;     /* flags */
   82 };
   83 
   84 /* flags */
   85 #define NPCB_FREE       0x01            /* free (not on any list) */
   86 #define NPCB_CONNECTED  0x02            /* connected */
   87 #define NPCB_IP         0x04            /* used by IP */
   88 #define NPCB_DRAIN      0x08            /* destory as soon as inq == 0 */
   89 
   90 /* flag arg to npcb_free */
   91 #define NPCB_REMOVE     0               /* remove from global list */
   92 #define NPCB_DESTROY    1               /* destroy and be free */
   93 
   94 LIST_HEAD(npcblist, natmpcb);
   95 
   96 /* global data structures */
   97 
   98 extern struct npcblist natm_pcbs;       /* global list of pcbs */
   99 #define NATM_STAT
  100 #ifdef NATM_STAT
  101 extern  u_int   natm_sodropcnt;
  102 extern  u_int   natm_sodropbytes;       /* account of droppage */
  103 extern  u_int   natm_sookcnt;
  104 extern  u_int   natm_sookbytes;         /* account of ok */
  105 #endif
  106 
  107 /* external functions */
  108 
  109 /* natm_pcb.c */
  110 struct  natmpcb *npcb_alloc(int);
  111 void    npcb_free(struct natmpcb *, int);
  112 struct  natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t);
  113 
  114 /* natm.c */
  115 #if defined(__NetBSD__) || defined(__OpenBSD__)
  116 int     natm_usrreq(struct socket *, int, struct mbuf *,
  117             struct mbuf *, struct mbuf *, struct proc *);
  118 #elif defined(__FreeBSD__)
  119 #if __FreeBSD__ > 2
  120 /*
  121  * FreeBSD new usrreqs style appeared since 2.2.  compatibility to old style
  122  * has gone since 3.0.
  123  */
  124 #define FREEBSD_USRREQS
  125 extern struct pr_usrreqs natm_usrreqs;
  126 #else /* !( __FreeBSD__ > 2) */
  127 int     natm_usrreq(struct socket *, int, struct mbuf *,
  128             struct mbuf *, struct mbuf *);
  129 #endif /* !( __FreeBSD__ > 2) */
  130 #endif
  131 
  132 #ifdef SYSCTL_HANDLER_ARGS
  133 int     natm0_sysctl(SYSCTL_HANDLER_ARGS);
  134 int     natm5_sysctl(SYSCTL_HANDLER_ARGS);
  135 #endif
  136 
  137 void    natmintr(struct mbuf *);
  138 
  139 #endif

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