sys/netnatm/natm.h

   1 /*      $NetBSD: natm.h,v 1.9 2005/12/11 12:25:16 christos 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 extern  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(int);
 140 void    npcb_free(struct natmpcb *, int);
 141 struct  natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int);
 142
 143 /* natm.c */
 144 #if defined(__NetBSD__) || defined(__OpenBSD__)
 145 int     natm_usrreq(struct socket *, int, struct mbuf *,
 146                              struct mbuf *, struct mbuf *, struct lwp *);
 147 #elif defined(__FreeBSD__)
 148 int     natm_usrreq(struct socket *, int, struct mbuf *,
 149                              struct mbuf *, struct mbuf *);
 150 #endif
 151 int     natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t);
 152 int     natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t);
 153 void    natmintr(void);
 154
 155 #endif
 156
 157 #endif /* !_NETNATM_NATM_H_ */